نتایج جستجو برای: carcinogenic pahs
تعداد نتایج: 15402 فیلتر نتایج به سال:
Polycyclic aromatic hydrocarbons (PAHs) have attracted more attention because of their high atmospheric concentration and toxicity in recent decades. In this study, a total 60 PM2.5 samples were collected from Beihuangcheng Island Bohai Sea, China, August 2017 to March 2018 for analyzing 16 congeners PAHs (Σ16PAHs). Sources apportioned by positive matrix factorization (PMF) model the carcinogen...
BACKGROUND Debate about the health implications of using smokeless tobacco products (STPs) has prompted considerable interest in characterising their levels of toxic and carcinogenic components. In the present study seventy smokeless tobacco products from the US and Sweden, categorized as chewing tobacco, dry and moist snuff, hard and soft pellets, plug, and loose and portion snus, were analyse...
Abstract. Polycyclic aromatic hydrocarbons (PAHs) are organic pollutants in fine particulate matter (PM) long known to have mutagenic and carcinogenic effects, but much is unknown about the importance of local remote sources for PAH levels observed population-dense urban environments. A year-long sampling campaign Athens, Greece, where more than 150 samples were analyzed 31 PAHs a wide range ch...
This research examined the total extractable hydrocarbon content comprising of polycyclic aromatic hydrocarbons (PAHs), petroleum (TPHs), hydrogen carbon (THC) and organic nitrogen (TON) an oil-spill-impacted site in Ogoni land, Okenta Alode, Eleme local government area, Rivers state, Nigeria. Sediment samples crude oil contaminated soils were randomly collected from different points at study s...
The northern Gulf of Mexico supports a substantial level oil and gas extraction in marine waters experiences acute chronic exposure to pollution events. region also diverse array breeding migratory seabirds that are exposed these pollutants during foraging other activities. Among the highest concern within polycyclic aromatic hydrocarbons (PAHs) which tend be toxic, carcinogenic, mutagenic, or ...
In South Asia, combustion of solid fuel for residential heating and cooking is a major emission source particulate-phase polycyclic aromatic hydrocarbons (p-PAHs), potent carcinogen human health. The factors (EFs) diagnostic ratios PAHs currently used in regional inventory models have been estimated from controlled laboratory tests, which do not accurately reflect real-world scenarios observed ...
Urbanization may cause increased exposure levels to polycyclic aromatic hydrocarbons (PAHs) and associated health risks for over half of the world’s population living in cities, but little evidence has shown a direct spatial relationship between urbanization and soil PAH pollution. Based on the monitored PAH concentrations in 188 topsoil (0–5 cm) samples in Shenzhen, the most rapidly developing...
Occupational exposures during iron and steel founding have been classified as carcinogenic to humans, and the exposure to polycyclic aromatic hydrocarbons (PAHs) in this industrial setting may contribute to cancer risk. The occupational exposure to PAHs was assessed in 93 male workers at an electric steel foundry in Tunisia by biomonitoring, with the aims of characterizing the excretion profile...
House settled dust (HSD) contains various hazardous materials, including polycyclic aromatic hydrocarbons (PAHs) and metals. Exposure to toxicants contained in HSD is of paramount concern especially the case young children, due their particular behavioral characteristics. In this context, extracts sieved vacuum cleaner from 20 residences with children were examined for presence PAHs trace metal...
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