scholarly journals Occupational exposure to perchloroethylene in Portuguese dry-cleaning stores

2011 ◽  
Author(s):  
S. Viegas
2006 ◽  
Vol 3 (11) ◽  
pp. 606-619 ◽  
Author(s):  
Julia von Grote ◽  
Christian Hürlimann ◽  
Martin Scheringer ◽  
Konrad Hungerbühler

2009 ◽  
Vol 47 (2) ◽  
pp. 155-159 ◽  
Author(s):  
Seyed Reza AZIMI PIRSARAEI ◽  
Ali KHAVANIN ◽  
Hassan ASILIAN ◽  
Ardalan SOLEIMANIAN

2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
F Omrane ◽  
M Khadhraoui ◽  
A Abid ◽  
M Mitigui ◽  
B Elleuch ◽  
...  

Abstract The use of chlorinated solvents in dry cleaning poses risks to human health. The current study is the first in Tunisia and Sfax city that aims to assess the occupational exposure and health risks of perchloroethylene (PCE) and trichloroethylene (TCE) in the dry cleaning industry. TCE was suspected to be used as it is not explicitly banned by law. We identified dry cleaning facilities by door-to-door canvassing within a 5 Km radius from the city center of Sfax. We found 47 facilities, but only 33 accepted to join our study. Then, we randomly selected 16 facilities where the exposure assessment to these solvents was conducted by indoor air measurements. The exposure levels were compared to occupational exposure limit values (OELV) and toxicological reference values. Then, cancer risks were evaluated. TCE was detected in all workplaces and their levels are close to the OELV (95% CI of the mean value [40.4-46 mg/m3]). The mean value of PCE concentrations is lower than the fifth of the OELV, but they are quite variable (95% CI of the mean value [5.1-43.4 mg/m3]). The overall results showed that inhalation exposure levels may induce many adverse effects that are probably threatening the occupationally exposed population and even the general one, because of the location of all facilities in residential settings. Among threshold effects, we noted high risks of neurological, renal, developmental and immune effects. As for carcinogenic effects, greatly high cancer risks were noticed if the lifetime exposure would have these average levels; 17 additional cases of kidney, hematologic or liver cancers are expected to occur in populations of 100. This study is significant for better understanding of the dry cleaning industrial sector in Tunisia and for the progress of future risk assessment studies. Indeed, it responded to many interrogations and suspicions about the qualitative and quantitative exposure conditions and thus the health status of dry cleaning workers in Sfax. Key messages Our study is the first health risk assessment study of the exposure to chlorinated solvents in dry cleaning in Sfax city. It revealed high levels of trichloroethylene that is a carcinogen to humans. The high exposure levels to per and tri-chloroethylene, in dry cleaning in Sfax city, may induce adverse health effects to workers and even the general population due to residential exposure.


Author(s):  
Alberto Modenese ◽  
Tiziana Concetta Gioia ◽  
Andrea Chiesi ◽  
Carlotta Abbacchini ◽  
Lucia Borsari ◽  
...  

Recent data suggest a general trend in decreased occupational exposure to perchlorethylene (PCE) in the dry-cleaning sector. The aims of this study were to confirm this trend to lower exposure levels in a group of Italian dry cleaners and to evaluate the current occupational PCE exposure in these works using noninvasive biological indices. Environmental exposure was assessed by personal sampling in 60 operators working in 21 dry cleaning shops in North Italy. PCE in the exhaled alveolar air (PCEalv), urinary concentration of PCE and of trichloroacetic acid (TCA) (PCEu and TCAu respectively), were measured as biological exposure indices. Median PCE environmental concentration in the whole sample was 10.6 mg/m3 (i.e., less than the 25% of the levels measured in the same area in a previous study). All values were less than 10% of the occupational limits. PCEu measured in samples collected at the end of the work shift resulted the biological markers having the strongest correlation with environmental PCE (r = 0.81). PCEalv also resulted in a high correlation (r = 0.66), while a lower correlation was found for TCAu measured at the end shift (r = 0.32). According to our results, PCEu can be proposed as a valid, noninvasive, and easily reliable exposure index to evaluate PCE exposure at the low levels currently observed in dry cleaners, therefore representing a promising alternative to invasive blood sample collections needed to determine PCE blood concentration.


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