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Document ID (ISN)111493
CIS number 11-0221
ISSN - Serial title 0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail
Year 2010
Convention or series no. ND 2336-221-10
Author(s) Poirot P., Grosjean J., Monta N., Nicot T., Zimmermann F., Duquenne P., Greef-Mirguet G., Koehler V., Piernot C.
Title General considerations of chemical and microbiological hazards in composting
Original title Approche des risques chimiques et microbiologiques dans le secteur du compostage [in French]
Bibliographic information Dec. 2010, No.221, p.3-16. Illus. 30 ref.
Internet access ND 2336-221-10.pdf [in French]
Abstract This article presents a non-exhaustive inventory of the chemical and biological hazards faced by workers of composting facilities. Findings of various studies reveal the presence of three main pollutants: total particulate materials (TPM), ammonia and endotoxins. While generally present at concentrations lower than the occupational exposure limit value (OELV), TPM concentrations are significant and, locally, may reach very high levels depending on the work operation and the workplace configuration. Ammonia concentrations appear to be of greater concern (28% exceeding the OELV) at some enclosed facilities processing urban water purification plant sludge. It was also found that loader filter boxes were inefficient in half the study cases. Endotoxins were present at all sites, sometimes at very high concentrations. Cultivable microorganism concentrations were also highly variable and were observed to reach very high levels, in particular thermophilic bacteria concentrations, exceeding 105 UFC/m3 at some composting facilities.
Descriptors (primary) compost; exposure evaluation; chemical hazards; biological hazards
Descriptors (secondary) France; breathing atmosphere; ammonia; microorganisms; bacterial toxins; determination in air; threshold limit values
Document type D - Periodical articles
Subject(s) Commerce, services, offices
Broad subject area(s) Chemical safety
Biological hazards
Browse category(ies) Biological hazards
Exposure evaluation