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PubMed2003

Stroke outcomes in Northern Scotland: does rurality really matter?

INTRODUCTION: Stroke is the third leading cause of death in Scotland after coronary heart disease and cancer and is a major cause of long-term disability. There is evidence in other clinical conditions such as asthma, diabetic retinopathy, and cancer that rural residents may have poorer outcomes, due to relative inaccessibility of health-service provision or because the disease is at a more advanced stage at diagnosis. However, the evidence-base for stroke care and outcomes in remote and rural areas is small and the subject matter is under-researched. This study was designed to examine, over a one-year period, the incidence and outcome of stroke occurring in the Highlands and Islands of Scotland, a large geographical area with many rural and remote settlements. The study explored whether stroke care and outcome was affected by remoteness and rurality. METHODS: The study was a prospective, community-based, observational survey. Patients in Highland and the Islands (Orkney, Shetland and the Western Isles) suffering first-ever stroke during a 12-month period (from 1 May 2001 to 30 April 2002) were included. All practitioners from health and social care sectors, residential homes, voluntary and charitable organisations were encouraged to notify the researchers of any individual they suspected or knew had a first-ever stroke within the designated time period. Data on 'limitation in activities' (formerly 'level of disability') and service provision were collected using questionnaires and proformas at 1, 3 and 6 months post-stroke from several sources. These included individual patients and carers, health and social care professionals, residential homes, voluntary organisations, and charitable organisations. The analysis focused on location at time of follow up, limitation in activities and service provision. Outcomes were compared across different settlement categories. Settlements were classified as urban/accessible, remote rural and very remote, based on the Scottish Household Survey. RESULTS: In all, 303 patients with a suspected first-ever stroke were notified to the study. The resulting crude incidence of reported stroke was 1.1 per 1000. From the notifications, 239 patients were sent a consent form, of whom 118 agreed to participate in the study. The final dataset, after exclusions for incorrect diagnosis, deaths and other reasons, was derived from 85 patients. Among these, patients from remote rural and very remote settlements were over-represented, when compared to all patients notified. The majority of patients returned home from acute hospitals during the study period and the likelihood of returning home was not related to settlement category. However, a greater proportion of patients in remote rural settlements were admitted to community hospitals and remained there at 6 months. Approximately two-thirds had some degree of disability (or limitation in activities) after their stroke. One-third of patients classed themselves as independent across all time points. Overall, the Barthel Index score increased over time (ie, patients experienced a reduction in disability) with the average score at 1 month post-stroke being 82.5 (range 0-100), at 3 months 85 (range 5-100), and at 6 months 90 (range 5-100). Uptake of services was similar across all settlement categories, with low levels of use at 6-months post-stroke. In particular, few patients used social-support and stroke-specific services, for example Chest, Heart and Stroke Scotland, and Stroke Nurse services. The proportion of patients using any service at 1, 3 and 6 months did not differ between settlement categories. Rural patients did not therefore appear disadvantaged in service provision. CONCLUSIONS: The low incidence of reported stroke may have been due to a number of reasons including: death prior to notification; diagnostic uncertainty; stroke severity--failure to notify very mild or very severe stroke cases; and inadequate reporting of patients managed at home. The greater proportion of patients in remote rural settlements being admitted to community hospitals and remaining there at 6 months may reflect greater availability of community hospital places in this settlement category, but may also be influenced by stroke severity. The low uptake of rehabilitation and support services generally, combined with the relatively poor functional outcome of our patients, suggests that there may be an unmet need for rehabilitation. However, rural patients did not appear specifically disadvantaged. Our study indicates that patients developing a first-time stroke in remote and rural areas of the Highlands and Islands of Scotland are not disadvantaged compared to those in urban/accessible areas, with respect to outcome or to the utilization of health and social care services. However, functional outcomes could be improved for patients in all settlement categories.

Journal Article↗
PubMed2005

The Adults with Incapacity (Scotland) Act--Who knows? Who cares?

UNLABELLED: The Adults with Incapacity (Scotland) Act 2000 provides new guidelines on obtaining consent for adults who are incapable of providing informed consent. This article surveys current practice of health workers when obtaining consent from such individuals, and the results are compared to the Incapacity Act and local guidelines. The survey results suggest that practice of the guidelines is variable and often legally inadequate. AIMS: To quantify awareness and practical application of the Adults with Incapacity (Scotland) Act in surgical wards in a central Glasgow teaching hospital, 2 years after the Act's introduction. METHODS: An interviewer led anonymous questionnaire was presented to all degree educated staff encountered on random visits to acute and elective surgical and orthopaedic wards in a split site teaching hospital. RESULTS: 17 out of 50 staff approached (34%) had not heard of the Adults with Incapacity Act. There was a significantly higher level of awareness amongst staff based on acute wards (85%) when compared with those from elective wards (54%) (p < 0.05, chi-square) There was a complete absence offormal training in using the Act and knowledge was sometimes inaccurate or incorrect. Most staff that had heard of the Act could suggest causes of incapacity, but some included physical disability. There was a persistence of the belief that a relative can consentfor an incapable adult patient, and this was expressed by some of the staff despite knowledge of the Act. CONCLUSIONS: This study shows that a significant number of ward staff have no knowledge of the Act; and understanding is variable amongst staff who have heard of it. The Adults with Incapacity (Scotland) Act 2000 is a unique piece of legislation to protect the interests of incapable patients, and doctors treating them; but is of no use if medical and nursing staff are unaware of its existence.

Adult↗
PubMed2003

Persistent increase in the incidence of abdominal aortic aneurysm in Scotland, 1981-2000.

BACKGROUND: In the 1970s and 1980s, mortality and morbidity rates for abdominal aortic aneurysm (AAA) increased throughout the developed world. As AAAs are associated with similar risk factors to other cardiovascular diseases that have recently decreased in incidence, the incidence of AAA should show a similar declining trend. METHODS: Routinely collected data were obtained on all primary diagnoses of aortic aneurysm resulting in death or hospital discharge in Scotland between 1981 and 2000. Trends in the data were analysed according to sex and age, aneurysm site and type of hospital admission. RESULTS: Between 1981 and 2000, 42.3 per cent of the 10 822 deaths from aortic aneurysm in Scotland were attributed to the abdominal aorta. Age-adjusted mortality rates for AAA increased 2.6-fold from 2.62 deaths per 100 000 in 1981 to 6.82 per 100 000 in 2000. Hospital admissions for AAA also rose threefold, with increases in both elective admissions (from 3.05 to 7.80 per 100 000) and emergency admissions (from 7.44 to 11.23 per 100 000). CONCLUSION: The incidence of AAA has increased over the past 20 years in Scotland. This is unlikely to be due simply to changes in detection and diagnosis, data inaccuracies, coding or ageing of the population. The incidence of both elective and emergency admission for AAA increased, suggesting that a genuine and persistent rise in the incidence of AAA has probably occurred.

Adolescent↗
PubMed2005

Modeling the current and future disease burden of hepatitis C among injection drug users in Scotland.

Quantitative estimates of the current and future burden of hepatitis C virus (HCV) disease are required to plan a public health response to the HCV epidemic with regard to both prevention and treatment. A forward projection model was used to estimate the numbers of both current and former injecting drug users (IDUs) who acquired HCV and progressed to moderate and severe disease in Glasgow and Scotland during 1960-2030. The model was designed to synthesize information on the incidence and cessation of injecting drug use, the incidence of HCV infection among IDUs, the rate of HCV disease progression, and the annual number of IDUs developing HCV-related decompensated cirrhosis. During 2003, a total of 17,400 and 42,900 HCV-infected IDUs were estimated in Glasgow and Scotland, respectively; this compares with approximately 5,000 and 13,900 diagnosed, respectively, and 13,200 and 32,200 with chronic HCV, respectively. The number of IDUs developing HCV-related decompensated cirrhosis in Scotland is estimated to double between 2000 and 2020. As many as 16% and 27% of former IDUs in 2005 aged 30-39 and 40-49 years, respectively, were estimated to have moderate disease, which highlights the potential benefit of targeting HCV testing at former IDUs who belong to these age groups. In conclusion, the identification and treatment of a larger proportion of former IDUs with HCV disease and education about the importance of minimal alcohol consumption are needed to help achieve a greater impact on the future morbidity and mortality of this disease.

Hepatitis C↗
PubMed2002

Discharge consents in Scotland.

The Scottish Environment Protection Agency (SEPA) is charged with the protection of the Scottish environment, and this is achieved through the regulation of polluting discharges and through consulting, influencing and educating others who interact with it. This paper describes aspects of the agency's regulatory work as it applies to the Scottish fish-farming industry. By far the largest sector of the industry in Scotland involves the rearing of fin-fish in cages, presently still dominated by Atlantic salmon, and the paper is based on experiences gained within this sector. The present circumstances affecting its development are described with reference to the environmental impacts associated with cage-rearing techniques used for production in marine waters. This paper briefly reviews the statutory background behind Scotland's system of discharge consents, including relevant aspects of European legislation. Methods developed to control the environmental risks posed by sea louse treatment chemicals are described. The concept of farming the sea is explored in relation to SEPA's 'allowable zone of effects' approach and the growing public concern about perceived environmental damage. Finally, the future prospects for the industry in Scotland are reviewed in relation to sea louse control.

Animals↗
PubMed1999

The prevalence of multiple sclerosis in Tayside, Scotland: do latitudinal gradients really exist?

To determine the prevalence of multiple sclerosis (MS) in the Tayside Health Board Area, Scotland, we carried out a population-based survey using four intersecting sources (Neurology Department records, a survey of general practitioners, Scottish Morbidity Records of discharges from hospitals and visual evoked response requests). A two-source capture-recapture model estimated survey coverage, and direct age-sex standardisation was used to take account of different population structures. Comparisons were made between the prevalence in Scotland and that in the rest of the United Kingdom. A total of 727 (definite and probable) and 880 cases (early, probable and possible) were identified using the criteria of Poser et al. and those of Allison and Millar in a population of 395,600 (1995 mid-year estimate). The prevalence of MS on 1 September 1996 was 184/100,000 (95% confidence interval 171-198) and 222/100,000 (95% confidence interval 210-240), respectively. The two-source capture-recapture model estimated that the survey was between 93% and 99% complete. Age-sex standardisation eliminated certain north-south differences in prevalence when comparisons were made with previous surveys. Diagnostic misclassification may also have influenced reported prevalence statistics. The prevalence is similar to that found in revised figures from the Grampian region in Scotland but significantly higher than recent estimates from England and Wales. Methodological differences may account for most of the reported differences between north and south, although there is still evidence to suggest that MS is more prevalent in northern Great Britain and Northern Ireland than in England and Wales.

Adolescent↗
PubMed1991

The changing incidence of neural tube defects in Scotland.

The impact of neural tube defects on neonatal surgery has been declining in Scotland over the past two decades. The Scottish statistics for neural tube defects were studied from 1971 to 1988. The incidence of neural tube defects in Scotland has declined from 5.50 to 1.10 per 1,000 births over this period (3.00 to 0.58 per 1,000 births for spina bifida and 2.50 to 0.52 per 1,000 births for anencephaly). Antenatal maternal alpha-fetoprotein (AFP) screening was introduced to Scotland on a wide scale in 1976. The number of terminations for anencephaly peaked in 1980 (85), and for spina bifida in 1981 (70), and both have since declined. The Scottish birth rate has been about 67,000 per year over this period. The declining incidence of neural tube defects is not explained by the effect of antenatal screening and terminations alone. A downward trend was apparent before 1976, and although antenatal screening has had a considerable impact on anencephaly births (peak terminations 89% in 1983), it has had only a modest impact on spina bifida births (peak terminations 53% in 1984). We conclude that the natural decline in incidence of neural tube defects is the major factor in the observed decline in neonatal surgical admissions for these defects.

Abortion, Eugenic↗
PubMed1990

Human listeriosis in Scotland 1967-1988.

In order to study the epidemiology of listeriosis from 1967-1988 in Scotland, various sources of data were examined. These included reports by laboratories, reference laboratory records, hospital death and discharge records, death certificates and hospital laboratory records. Cases were reported from 13 of Scotland's 15 Health Boards. Case ascertainment via laboratory reports to the Communicable Diseases (Scotland) Unit was validated in two Health Boards. A total of 198 cases was identified with an overall attack rate which increased from 0.5 per million in 1967-1971 to 7.0 per million in 1987-1988. Feto-maternal cases were the commonest (64%). Of all cases, 33% were neonates; 53% presented with bacteraemia and 41% with meningitis. The predominant serovar of Listeria monocytogenes was 4b.

Adolescent↗
PubMed1987

Changes in testicular cancer in Scotland.

There are two purposes to this paper. Firstly to describe the temporal pattern of germ-cell testicular cancers in Scotland, both as a single entity and as the histological sub-types (pure) seminoma and teratoma. Incidence rates rose by over 50% between 1959 and 1984, with the rates of seminoma increasing only marginally and the majority of the overall increase accounted for by the substantial increase observed among the sub-type teratoma. Secondly, to investigate the impact of new therapies on the mortality rate from germ-cell testicular cancer in Scotland in the light of improvements in survival rate reported during the last 25 years from clinical trials and clinical series. Noticeable changes have occurred in the temporal pattern of mortality which cannot be explained by changes in incidence. The ever-widening gap between the increasing incidence rate and the declining mortality rate, particularly apparent in the high-risk age group 15-44, indicates an improving prognosis for patients with this malignancy in Scotland.

Adolescent↗
PubMed1988

Improving prognosis of Hodgkin's disease in Scotland.

Time trends in mortality from Hodgkin's disease have been studied in Great Britain for the 70-year period, 1911-1980, and incidence in Scotland since 1959. In both Scotland and England and Wales, in each sex, mortality from Hodgkin's disease rose steadily from 1911 until 1970 and thereafter dropped substantially; the greatest fall was apparent in Scottish males. While mortality rates continue to decline in Scotland the incidence has remained fairly constant over the last 25 years suggesting a major change in prognosis for this disease. The introduction of effective chemotherapy and improved techniques of radiotherapy appear to have improved prognosis sufficiently, and to have been made adequately widely available, as to influence overall mortality rates at a national level as well as at the level of the clinical trial. No such improvement in prognosis, however, explains the declines observed in mortality rates among children of each sex in both areas which have taken place since the 1930s. In view of the current knowledge of the aetiology of Hodgkin's disease this fall may have been brought about by changes in socioeconomic factors.

Age Factors↗
PubMed1993

Performance of an established system of first responder out-of-hospital defibrillation. The results of the second year of the Heartstart Scotland Project in the 'Utstein Style'.

The Heartstart Scotland project for out-of-hospital defibrillation covers the whole of Scotland, a population of approximately 5,102,400 (14.9% > 65 years, 48.3% male). All 395 ambulances in Scotland have been equipped with an automated external defibrillator and crews are trained in basic cardiopulmonary resuscitation and defibrillator use (EMT-D). Between 1 May 1990 and 30 April 1991 a total of 1700 cardiac arrests was reported by the ambulance service. Of the 1676 arrests which we could trace, 63% were witnessed. A total of 1383 (83%) of all patients were declared dead on arrival at hospital or in the emergency department, 119 (7%) died in hospital and 174 (10%) were discharged alive. Of the 174 survivors, 87% were conscious and normal at discharge, 9% had moderate residual disability and 2% severe disability. Survival of patients discharged alive from hospital was 85% at 1 year. Defibrillation was undertaken in 71% of the reported cardiac arrests. Survival of bystander witnessed arrests was increased from 7 to 15% with bystander CPR (P < 0.005). If the cardiac arrest was witnessed by the ambulance crew and required defibrillation, survival to discharge was 39%. Of bystander witnessed arrests reached while still in VF (n = 643), 11% were discharged alive. Patients who were defibrillated within 4 min of arrest had a 43% survival rate to hospital discharge.

Cardiopulmonary Resuscitation↗
PubMed2005

Examining the relationship between lung cancer and radon in small areas across Scotland.

Numerous studies have suggested that long-term exposure to radon gas may be an important cause of lung cancer, yet the precise effects are still not fully understood, especially in residential settings. This paper considers whether there is a relationship between the distribution of naturally occurring radon gas and lung cancer incidence in Scotland, for the period 1988-1991. We use regression analysis to test whether exposure to radon was a significant cause of lung cancer in Scotland, once smoking and other possible confounding factors were controlled for. The results demonstrate that for the population aged over 54, there was no significant relationship between radon exposure and lung cancer incidence. However, for those aged less than 55, lung cancer rates were significantly higher in places expected to have the highest levels of radon. These results suggest that more research is needed into the relationship between exposure to naturally occurring radon gas and lung cancer in Scotland, particularly among younger age groups.

Adolescent↗
PubMed2005

A follow-up study of professionals' perspectives on the development of family health nursing in Scotland: a questionnaire survey.

BACKGROUND: In 1998 the World Health Organisation Europe introduced the Family Health Nurse concept. The envisaged role of this community-based nurse was seen as multi-faceted and included helping individuals, families and communities to cope with illness and improve their health. During 2000-2002 Scotland led enactment of the concept through education and practice, and the first research study evaluating its operation and impact in remote and rural areas was published in 2003. OBJECTIVE: This study's purpose was to follow up health care professionals' perspectives on the development of family health nursing in remote and rural areas of Scotland since 2002. METHODS: The main research method used was questionnaire survey of all the established family health nurses in these areas and all other health and social care professionals with whom they had regular work-related contact. Where novel contexts or practice patterns emerged, further investigation was undertaken through telephone interviews. FINDINGS: Twenty-three family health nurses (88%) and 88 of their colleagues (52%) returned questionnaires. Eight family health nurses were interviewed. The dominant theme within the findings was the gradual, positive development of a role which tended to maintain established community nursing service provision, yet also supplement this with a limited expansion of family health services and public health activities. The flexibility and wide scope of the FHN role in terms of providing generalist community health nursing services was clearly evident. However, capacity to engage with whole families was found to vary widely in practice. CONCLUSIONS: Within remote and rural Scotland family health nursing is gradually consolidating and developing, but its particular aspiration to engage with whole families is often difficult to enact and is not a priority within mainstream UK primary care policy, planning or provision.

Attitude of Health Personnel↗
PubMed2005

Increasing incidence of mumps in Scotland: options for reducing transmission.

BACKGROUND: There has been a dramatic increase in mumps in Scotland since November 2003, with cases primarily in adolescents and young adults. OBJECTIVES: This paper describes mumps epidemiology in Scotland, undertakes a risk assessment and considers option for reducing transmission. RESULTS: Mumps is primarily a risk for the 13-25 year age group, as they have neither been offered two routine doses of measles, mumps and rubella MMR vaccine, nor been exposed to wild virus. Transmission is facilitated by a high degree of social mixing, with enclosed settings (school, universities etc.) being higher risk. On the basis of susceptibility and risk of transmission, three categories of higher (17-20 years), intermediate (21-22; 15-16 years), and low (23-25; 13-14 years) risk were defined, all in higher risk enclosed settings. Herd immunity would be very difficult to achieve, as it would require unrealistically high MMR uptake (an additional 45-80% in 17-20 year olds). A risk management strategy of reducing transmission and decreasing the likelihood of outbreaks was therefore proposed. Action would be targeted at the higher risk group (17-20 years) in higher risk settings. Three options were considered: do nothing; opportunistic immunisation through GPs; a mass campaign. The 'do nothing' option was discounted. The preferred option was to alert GPs to the need to offer MMR vaccine to 17-20 year olds in higher risk settings. The rationale for this was that it had the lowest cost, avoided disruption to services, and primarily that it would reduce the probability of mumps transmission in higher risk settings. CONCLUSIONS: The Chief Medical Officer issued a letter to all health professionals in Scotland encouraging them to offer MMR vaccine to 13-15 year olds, who had not previously received two doses, and particularly those aged 17-20 years in higher risk settings.

Adolescent↗
PubMed2005

Validation of surgical site infection surveillance data in Scotland.

Validation of surveillance data is necessary to ensure its scientific credibility, to identify methodological problems within the surveillance programme, to help increase compliance and participation in the surveillance programme, and to identify data quality issues at local level. Surgical site infection surveillance (SSIS) in Scotland has been implemented in collaboration between Health Protection Scotland (HPS) and staff in acute divisions in Scotland. A team at HPS carried out a study to validate the SSIS data reported to them. The aims of the validation study were: (i) to measure the completeness of the denominator data; (ii) to measure the accuracy of all SSIS data items reported to HPS; and (iii) to determine the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the SSIs reported to HPS against the SSIs validated as part of this study. The methodology utilized for validation of SSIS data was based on an evaluation research approach. The evaluation research approach involves a range of investigative activities, aimed at judging the worth of a programme or practice, and measures SSIS in terms of structure, process and outcome. The completeness of the denominator and the means of identifying eligible patients was identified. Descriptive information about how SSIS data were collected and managed at hospital level was collated, and the accuracy and completeness of the reported SSIS data were measured by case note review of selected cases. SSIS data from 27 hospitals in 15 acute divisions and one special health board were validated. The results indicated that a total of 91% of the procedures carried out (denominator) during a specified three-month period were reported to HPS. The case notes validated over 90% of records reported to HPS; however, there was variation in data quality between hospitals. The sensitivity, specificity, PPV and NPV of the SSIs reported to HPS were 96.7, 99.0, 94.6 and 99.4%, respectively. Where problems with data were identified at local level, hospitals have been offered guidance to improve their data. As a result of this study, HPS are confident that the Scottish SSIS data are reliable and robust.

Cross Infection↗
PubMed2001

The environmental context for water quality variation in Scotland.

The variation in water quality experienced in Scotland reflects differences in the physical environment and land management. These differences occur both as a result of natural variability, societal development and pollutant inputs. A large proportion of the land area of Scotland is upland in nature which is extensively managed. Whereas in the lowlands, intensive land management predominates. In addition, water quality in the lowland areas in the vicinity of Glasgow and Edinburgh is influenced through the legacy of Victorian and latter day industrial and urban development. A general introduction to the spatial distribution of these facets of Scotland and their relation to water quality is presented.

Agriculture↗
PubMed2001

The nitrogen composition of streams in upland Scotland: some regional and seasonal differences.

The nitrogen (N) composition of streams draining four upland regions of Scotland was compared in samples collected monthly between April 1997 and April 1998. Stream samples were analysed for total N (TN), particulate N (PN), nitrate (NO3), ammonium (NH4), dissolved organic N (DON) and dissolved organic carbon (DOC). Concentrations of TN were small, generally less than 1 mg l(-1) , dominated by dissolved forms of N, and varied significantly between upland regions. Nitrate accounted for most of the variability in TN; largest concentrations were observed in the Southern Uplands and smallest concentrations were observed in the Highlands. Nitrate concentrations were positively correlated with the percentage cover of improved grasslands and brown forest soils and negatively correlated with the percentage cover of peat. Concentrations of DON also varied between regions, but to a lesser extent than those of NO3. Largest concentrations occurred in SW Scotland and smallest concentrations in the Cairngorms. Although a significant positive correlation between DON and DOC was observed, stream water DON content was not related to the percentage cover of peat in the catchment, as was the case for DOC. The average DOC:DON ratio was narrower for streams in the Southern Uplands than for those in the Cairngorms and Highlands. Nitrate and DON displayed contrasting seasonal trends; NO3 concentrations were larger in the winter while DON concentrations were larger in the summer. Only a small proportion, < 8% and < 7%, of TN was PN and NH4, respectively, the majority of N was present as either NO3 or DON. Nitrate was the dominant fraction (58-65%) in all regions except the Highlands where DON accounted for 57% of TN. However, the relative importance of the DON component increased in the summer in all regions. This study has demonstrated that the DON fraction is an important component of the total N transported by streams from upland catchments in Scotland. Thus, assessments of anthropogenic impacts on N losses from upland ecosystems need to consider not only the dissolved inorganic species but also DON.

Agriculture↗
PubMed2002

Groundwater quality in Scotland: major ion chemistry of the key groundwater bodies.

Groundwater in Scotland is, for the most part, weakly to moderately mineralised and dominated by the Ca and HCO3 ions. The aquifer systems are almost entirely unconfined and most groundwater remains in contact with oxygen; some reducing groundwaters occur in deeper isolated cracks and joints within the many fractured bedrock aquifers such as Devonian sandstones. Groundwater depleted in oxygen is also common in the Coal Measures in the Midland Valley as a direct result of past coal and oil shale mining, when iron and other metals are taken into solution as the abandoned mine workings are allowed to flood. Low pH groundwaters are rare but do occur where calcite is absent in some basement rocks. Marine intrusion of coastal aquifers occurs locally in East Lothian and parts of Morayshire. Deeper circulating groundwaters are responsible for some of the more exotic spa waters, notably at Bridge of Earn near Perth. Nitrate contamination of groundwater is increasing in some areas, and is most prevalent in the south of Scotland. The Devonian aquifer in Fife and parts of the Permian sandstone aquifers of south-west Scotland are the worst affected.

Environmental Monitoring↗