title: [The biological monitoring of those exposed to 1,1,1-trichloroethane: a longitudinal study].
abstract: Data on long-term biological monitoring in two groups of workers engaged in cleaning operations in a wool factory and exposed to methylchloroform are presented. The longitudinal survey lasted one year and brought about 19 random systematic sampling (once or twice a month for everyone of the 13 subjects monitored). The biological marker adopted was the urinary concentration of the solvent as such, according to a previously studied method. The collected data allowed to measure: the annual average level of exposure (estimated by the long term geometric mean); the day to day variation of the true daily exposure averages (estimated by the geometric standard deviation); the probability of overexposure (daily exposures exceeding the biological exposure limit) and the yearly number of work shifts of overexposure. The usefulness of performing long-term surveys of occupational exposure to the chemical substances by mean of longitudinal biological monitoring is discussed.
authors.affiliation: Dipartimento di Medicina Preventiva, Occupazionale e di Comunità, Università di Pavia.
authors.forename: G
authors.initials: G
authors.lastname: Catenacci
authors.forename: G
authors.initials: G
authors.lastname: Pezzagno
authors.forename: S
authors.initials: S
authors.lastname: Tringali
authors.forename: R
authors.initials: R
authors.lastname: Terzi
authors.forename: L
authors.initials: L
authors.lastname: Fidanza
mesh_terms: D000328:Adult; D000395:Air Pollutants, Occupational / Q000009:adverse effects / Q000032:analysis; D000818:Animals; D004784:Environmental Monitoring / Q000379:methods* / Q000706:statistics & numerical data; D062665:Epidemiological Monitoring; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008137:Longitudinal Studies; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects* / Q000032:analysis / Q000706:statistics & numerical data; D012997:Solvents / Q000009:adverse effects* / Q000032:analysis; D013783:Textile Industry / Q000706:statistics & numerical data; D013997:Time Factors; D014240:Trichloroethanes / Q000009:adverse effects* / Q000032:analysis; D014935:Wool
chemical_list: D000395:Air Pollutants, Occupational; D012997:Solvents; D014240:Trichloroethanes; C024566:1,1,1-trichloroethane
vernacular_title: Monitoraggio biologico di esposti a 1,1,1 tricloroetano: indagine longitudinale.