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Gromiec JP Wesołowski W Brzeźnicki S Wróblewska-Jakubowska K Kucharska M 《Journal of environmental monitoring : JEM》2002,4(6):1054-1059
Several hundred chemical compounds were found in workroom environments in the rubber industry, but most of the published exposure data relate to the production of tyres; information from the "non-tyre" sections are very limited, if any. This study was carried out to identify chemical substances and measure their air concentrations in the repair shop of a brown coal mine in which damaged rubber conveyor belts were repaired. GC-MS and HPLC analysis of stationary air samples resulted in identification of aliphatic and aromatic hydrocarbons to C12, PAHs, alcohols, phenols, ketones, heterocyclic nitrogen and sulfur compounds. Quantitative evaluation of occupational exposure included determination of organic compound vapours collected on charcoal (GC-MSD), polycyclic aromatic hydrocarbons (HPLC), N-nitrosoamines and other amines (GC-NPD) and DNPH derivatives of aldehydes (HPLC) in the breathing zone of workers representing all job titles. The concentrations of investigated compounds were very low. Carcinogenic substances: N-nitrosoamines, benzene, PAHs were not present in workroom air in concentrations exceeding limits of detection of the analytical methods being applied; concentrations of methylisobutylketone, tetrachloroethylene, naphtha, aromatic hydrocarbons, phthalates and aldehydes were much lower than the respective occupational exposure limit values. The results indicate much lower exposure than that reported in the production of tyres and other fabricated rubber products. 相似文献
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Kati Berninger Wiktor Adamowicz Daniel Kneeshaw Christian Messier 《Environmental management》2010,46(1):117-133
The challenge of sustainable forest management is to integrate diverse and sometimes conflicting management objectives. In
order to achieve this goal, we need a better understanding of the aspects influencing the preferences of diverse groups and
how these groups make trade-offs between different attributes of SFM. We compare the SFM preferences of interest groups in
regions with different forest use histories based on the reasoning that the condition of the forest reflects the forest use
history of the area. The condition of the forest also shapes an individual’s forest values and attitudes. These held values
and attitudes are thought to influence SFM preferences. We tested whether the SFM preferences vary amongst the different interest
groups within and across regions. We collected data from 252 persons using a choice experiment approach, where participants
chose multiple times among different options described by a combination of attributes that are assigned different levels.
The novelty of our approach was the use of choice experiments in the assessment of regional preference differences. Given
the complexity of inter-regional comparison and the small sample size, this was an exploratory study based on a purposive
rather than random sample. Nevertheless, our results suggest that the aggregation of preferences of all individuals within
a region does not reveal all information necessary for forest management planning since opposing viewpoints could cancel each
other out and lead to an interpretation that does not reflect possibly polarised views. Although based on a small sample size,
the preferences of interest groups within a region are generally statistically significantly different from each other; however
preferences of interest groups across regions are also significantly different. This illustrates the potential importance
of assessing heterogeneity by region and by group. 相似文献
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Osińska Adriana Korzeniewska Ewa Korzeniowska-Kowal Agnieszka Wzorek Anna Harnisz Monika Jachimowicz Piotr Buta-Hubeny Martyna Zieliński Wiktor 《Environmental science and pollution research international》2023,30(5):11572-11583
Environmental Science and Pollution Research - Escherichia coli bacteria are an essential indicator in evaluations of environmental pollution, which is why they must be correctly identified. This... 相似文献
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Wiktor Adamowicz Diane DupontAlan Krupnick Jing Zhang 《Journal of Environmental Economics and Management》2011,61(2):213-226
We examine the value of health risk reductions (microbial illnesses/deaths and bladder cancer illnesses/deaths) in the context of drinking water quality treatment by public systems. When we assume that combined mortality and morbidity risk reductions are equally spread in the future; our results suggest that microbial risk-reduction programs have higher value than cancer risk-reduction programs, but that mortality risk reduction values are not significantly different for cancer and microbials. However, when a 25-year cancer latency is accounted for and a 5% discount rate is used, the value of cancer mortality risk reductions exceeds the value for microbial risk reductions. We also address a number of methodological issues, including performance of alternative choice experiment estimation (CE) techniques, relationship of CE to contingent valuation results, and implications for incorporating morbidity and mortality endpoints in the same survey instrument. 相似文献
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