CONTENT OF BENZO(a)PYRENE IN ESTONIAN SMALL LAKES
In: Proceedings of the Estonian Academy of Sciences: Eesti Teaduste Akadeemia toimetised. Biology, ecology, Band 49, Heft 4, S. 344
ISSN: 1406-0914
4827370 Ergebnisse
Sortierung:
In: Proceedings of the Estonian Academy of Sciences: Eesti Teaduste Akadeemia toimetised. Biology, ecology, Band 49, Heft 4, S. 344
ISSN: 1406-0914
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 78, S. 225-231
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 20, Heft 5, S. 3280-3289
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 24, Heft 6, S. 5404-5414
ISSN: 1614-7499
In: HAZMAT-D-21-14085
SSRN
In: Ecotoxicology and Environmental Safety, Band 53, Heft 1, S. 86-92
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 75, S. 187-197
ISSN: 1090-2414
In: Risk analysis: an international journal, Band 20, Heft 1, S. 81-86
ISSN: 1539-6924
Two‐year chronic bioassays were conducted by using B6C3F1 female mice fed several concentrations of two different mixtures of coal tars from manufactured gas waste sites or benzo(a)pyrene (BaP). The purpose of the study was to obtain estimates of cancer potency of coal tar mixtures, by using conventional regulatory methods, for use in manufactured gas waste site remediation. A secondary purpose was to investigate the validity of using the concentration of a single potent carcinogen, in this case benzo(a)pyrene, to estimate the relative risk for a coal tar mixture. The study has shown that BaP dominates the cancer risk when its concentration is greater than 6,300 ppm in the coal tar mixture. In this case the most sensitive tissue site is the forestomach. Using low‐dose linear extrapolation, the lifetime cancer risk for humans is estimated to be: Risk < 1.03 × 10−4 (ppm coal tar in total diet) + 240 × 10−4 (ppm BaP in total diet), based on forestomach tumors. If the BaP concentration in the coal tar mixture is less than 6,300 ppm, the more likely case, then lung tumors provide the largest estimated upper limit of risk, Risk < 2.55 × 10−4 (ppm coal tar in total diet), with no contribution of BaP to lung tumors. The upper limit of the cancer potency (slope factor) for lifetime oral exposure to benzo(a)pyrene is 1.2 × 10−3 per μg per kg body weight per day from this Good Laboratory Practice (GLP) study compared with the current value of 7.3 × 10−3 per μg per kg body weight per day listed in the U.S. EPA Integrated Risk Information System.
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 283, S. 116811
ISSN: 1090-2414
Polycyclic aromatic hydrocarbons (PAHs) were identified to be one of the major toxic air pollutants in urban environment PAHs are mostly formed during incomplete combustion or pyrolysis of organic material According to Serbian National Legislation, benzo(a)pyrene (BaP) concentration in total suspended particles (TSP) in ambient air in the Belgrade metropolitan area has been determined in the last ten years, as a part of a local air pollution monitoring program performed by the Public Health Institute of Belgrade and funded by Belgrades Municipality Air samples for analysis of BaP in suspended particles have been collected (as 24 h sample once per month) at selected monitoring sites within the municipal air quality monitoring network At the beginning, according to National Regulation, all samples were taken as total suspended particles (TSP) Since mid-2008, the procedure of sampling methodology was harmonized with EU requirements and solid fraction PM(10) has been collected and analyzed using GC/MS In this study, we have analyzed results of TSP collected between 2005 and 2008 Looking through the results obtained during the period of a whole year, it can be noticed that concentrations of BaP were much higher during winter season at almost all measuring sites
BASE
In: Environmental science and pollution research: ESPR, Band 21, Heft 2, S. 962-971
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 25, Heft 12, S. 12177-12182
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 7, Heft 3, S. 330-341
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 26, Heft 20, S. 21052-21058
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 210, S. 111892
ISSN: 1090-2414