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At least 109 records · Page 6Linked to original sources
PubMed1979

Causes of death among laundry and dry cleaning workers.

To make a preliminary determination as to whether a potential health hazard exists for workers exposed to dry cleaning solvents (carbon tetrachloride, trichloroethylene, and tetrachloroethylene), we analyzed the causes of death of 330 deceased laundry and dry cleaning workers by the proportionate mortality method. The increased risk for malignant neoplasms resulted primarily from an excess of lung and cervical cancer and slight excesses of leukemia and liver cancer. Although the number of deaths was small, the increased risk of cancer noted in this investigation underscores the need for additional epidemiologic studies of this occupational group.

Adult↗
PubMed1981

Female laundry and dry cleaning workers in Wisconsin: a mortality analysis.

The mortality patterns of 671 female laundry and dry cleaning workers for the period 1963--1977 were analyzed, using Wisconsin death certificate data. Results fail to show an overall increase in malignant neoplasms, but elevated risk was found for cancers of the kidney and genitals (unspecified), along with a smaller excess of bladder and skin cancer and lymphosarcoma.

Adolescent↗
PubMed1984

Mortality among laundry and dry cleaning workers in Oklahoma.

The mortality experience of 440 laundry and dry cleaning workers for the period 1975-81 was analyzed, using Oklahoma death certificate data. Results did not show an overall increase in total cancer, but an elevated risk was found for homicide, lung cancer, and kidney cancer. A decrease in risk was noted for ischemic heart disease and for breast cancer.

Adolescent↗
PubMed2002

Cancer incidence of dry cleaning, laundry and ironing workers in Sweden.

OBJECTIVES: This study investigated the risk of cancer among dry cleaners, launderers, and pressers in a large record-linkage study in Sweden. METHODS: The Swedish Cancer Register III contains nationwide data on cancer incidence between 1971 and 1989, by occupation and industry of employment, as reported in the 1960 and 1970 censuses. Dry cleaners, launderers, and pressers were compared with the remaining part of the employed population using multivariable Poisson regression models and standardized incidence ratios. RESULTS: Dry cleaners, launderers, and pressers employed in the laundry, ironing, or dyeing industry in both censuses showed an increased risk of Hodgkin's disease [relative risk (RR) 2.69,95% confidence interval (95% CI) 1.01-7.19], an elevated risk of leukemia among women (RR 2.53,95% CI 1.44-4.46), and increased risks of stomach (RR 1.80,95% CI 1.05-3.11) and laryngeal (RR 2.42, 95% CI 0.91-6.45) cancers among men. The results of the analyses of launderers and dry cleaners as a separate occupational group reflected those of the whole exposure group, while pressers showed an elevated lung cancer risk (RR 1.67, 95% CI 0.75-3.72). CONCLUSIONS: If they are not due to chance or confounding, the results of this study reflect either the potentiation of other carcinogens by solvents or direct effects. The results are limited by the use of job and industry titles as proxies for occupational exposures.

Adult↗
PubMed2002

Pilot-scale testing membrane bioreactor for wastewater reclamation in industrial laundry.

A pilot-scale study of membrane bioreactor treatment for reclamation of wastewater from Berendsen Textile Service industrial laundry in Søborg, Denmark was carried out over a 4 month period. A satisfactory COD degradation was performed resulting in a low COD in the permeate (< 50 mg/l). To obtain satisfactory treatment, addition of nitrogen was necessary. The biodegradability of the permeate was very low (BOD5 < 2 mg/l). A hydraulic retention time of 1 d turned out to be sufficient at a sludge concentration of 10 g MLSS/l. Through addition of a cationic polymer, a satisfactory dewaterability of the sludge was reached. Membrane tests showed that operating at a trans-membrane pressure of 3 bar and a cross-flow velocity of 4 m/s, a flux of 120 l/m2h can be expected without using chemicals for membrane cleaning. The quality of the permeate was very good when comparing to the reuse quality demands of water to the wash processes. Reuse of the permeate in all rinsing steps requires additional treatment through reverse osmosis.

Biodegradation, Environmental↗
PubMed2004

Organic and detergent degradation in combined O3/UF for domestic laundry wastewater reclamation.

This paper focuses on the evaluation of organic and detergent degradation in a combined Ozone/UF system for domestic laundry wastewater reclamation. Formation of by-product was investigated by GC/MS for the reclaimed water. Ozone was injected into the raw wastewater in a 10 L contact tank and the wastewater was circulated through the membrane module for inner pressurized cross-flow filtration. The concentrate was returned back to the contact tank. The membrane used in this experiment was hollow fiber polysulfone UF membrane with MWCO 10,000. It has an effective filtration area of 0.06 m2. The experiment was carried out with intermittent ozone injection, 5 min injection and 10 min idling. Ozone was dosed at the concentration of 1.5 mg/L. The flux of the UF could be maintained at 0.24 m/d under filtration pressure 40-45 kPa and water temperature, 20-22 degrees C. The organic removal efficiency by the system was 90% in terms of COD. Ozone was considerably effective to degrade organics in the wastewater. Molecular weight of organics in the raw waste was mostly greater than 10,000 (72% of 950 mgCOD/L). However 86% of effluent COD (94-100 mg/L) was composed of organics smaller than MWCO 500 by ozone injection. No harmful by-products by ozone contact were detected from the analysis of treated water using GC/MS. It was identified that residual organics in the treated water were 1,1'-Oxybisbenzene, Octadecanoic acid, Squalene and Benzenmethanol, etc., which were additives contained originally in the detergent. Consequently the reclaimed water quality could be estimated safe enough to recycle for the rinsing cycle in a washing machine.

Biodegradation, Environmental↗
PubMed1990

[Pollution of indoor air in large-scale kitchens and laundries by volatile halogenated hydrocarbons].

The study demonstrates that the agents used for dishwashing and in the central laundry are already slightly contamined with halogenated hydrocarbons and formaldehyde. Analyses of the washing lyes yield considerably higher concentrations of halogenated hydrocarbons. Especially in the dishwater a relatively high concentration of trichloromethane (chloroform) was detected. Obviously these halogenated hydrocarbons are also present in relatively high concentrations in the air of the corresponding working places. However, the concentrations of individual halogenated hydrocarbons and formaldehyde are clearly below the respective threshold limit values.

Air Pollutants, Occupational↗
PubMed1996

[Microbiological public health aspects in the use of rain water as water reservoirs for toilet flushing, garden irrigation and laundry].

From a total of 102 rain water cisterns in use for toilet flushing, garden irrigation and laundering washing about 1,600 water samples were collected and subjected to microbiological analysis. The assays included aerobic heterotrophic microorganisms growing at 20 and 37 degrees C, respectively, as well as the identification of Escherichia coli, coliform organisms, faecal streptococci, Pseudomonas aeruginosa, staphylococci, yersiniae, salmonellae, shigellae, legionellae and yeasts. The median of the total number of cells per ml was 1,200 at 20 degrees C and 230 at 37 degrees C, respectively. Approximately 26 E. coli cells and 198 coliform organisms (median values) were found per 100 ml. In the case of cisterns manufactured of plastic the total number of cells was generally found to be lower than in samples collected from concrete or brick-made storage tanks. With the exception of the ubiquitously distributed organism Pseudomonas aeruginosa (found in 11.8% of the samples) and salmonella in only one sample, no other pathogens were detected. More than 95% of all analysed samples met the quality standards for bathing waters as set by the European Community. Provided certain precautions are taken, such as strict separation of mains for drinking water and rain water, as well as correct labelling of pipelines and collection sites, the use of rain water for toilet flushing, garden irrigation and laundry washing presents no unacceptable risk to public health.

Agriculture↗