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Rao PS Ansari MF Pipalatkar P Kumar A Nema P Devotta S 《Environmental monitoring and assessment》2008,137(1-3):387-392
A study on concentrations of ambient particulates viz. total suspended particulate matters (TSP), respirable suspended particulate
matter (RSPM) and polycyclic aromatic hydrocarbons (PAH) were carried out at six sites around the Asia’s largest, 12 MMTPA,
petroleum refinery in west coast of India. PAH concentrations are correlated with each other in these sites, suggesting that
they have related sources and sinks. The present article discusses the monitoring aspects such as sample collection, pretreatment
and analytical methods and compares the monitored levels for assessing the source receptor distribution pattern. The main
sources of RSPM and PAHs in urban air are automobile exhaust (CPCB, Polycyclic aromatic hydrocarbons (PAHs) in air and their effects on human health. “”, 2003; Manuel et al., Environmental Science and Technology, 13: 227–231, 2004) and industrial emissions like petroleum refinery (Vo-Dinh, Chemical analysis of polycyclic aromatic hydrocarbons, Wiley: New York, 1989; Wagrowaski and Hites, Environmental Science and Technology, 31: 279–282, 1997). Polycyclic aromatic hydrocarbons (PAH) are ubiquitous constituents of urban airborne particulate mostly generated by anthropogenic
activities (Li et al., Environmental Science and Technology, 37:1958–2965, 2003; Thorsen et al., Environmental Science and Technology, 38: 2029–2037, 2004; Ohura et al., Environmental Science and Technology, 32: 450–455, 2004) and some of them are of major health concern mainly due to their well-known carcinogenic and mutagenic properties (Soclo
et al., Marine Pollution Bulletin, 40: 387–396, 2000; Chen et al., Environment International, 28: 659–668, 2003; Larsen and Baker, Environmental Science and Technology, 32: 450–455, 2003). Limited information is available on PAHs contributions from refineries to ambient air. Hence this study would not only
create a database but also provide necessary inputs towards dose-response relationship for fixing standards. Also, since it
acts as precursor to green house gas, the data would be useful for climate change assessments. The objective of this article
is to find out the concentration of PAHs in particulate matter around petroleum refinery and compare with their concentrations
in major Indian urban centers. 相似文献
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Khaparde VV Pipalatkar PP Pustode T Rao CV Gajghate DG 《Environmental monitoring and assessment》2012,184(2):903-911
Influence of burning of fireworks on particle size distribution of PM10 and associated barium (Ba) were studied at a congested residential cum commercial area of Nagpur city, India. Sampling was
carried out by cascade impactor having 50% cut-off aerodynamic diameters of <10, 9, 5.8, 4.7, 3.3, 2.1, 1.1, 0.7, and <0.4 μm,
2 days before diwali, during diwali, celebrations of marriage functions, and New Year’s Eve. Noticeably, increased levels
of PM10 and Ba were observed during diwali as compared to days before diwali and other activities. PM10 levels were increased by four to nine times whereas Ba levels were increased by eight to 20 times higher in alveolar region,
when compared with the levels observed before diwali. Probability of deposition of Ba mass in alveolar region varied between
14 and 27 ng/h with higher deposition when the burning of fireworks activity was lower near the site. Trimodal distribution
of Ba was observed on the first 2 days of diwali at 0.4–2.1, 2.1–4.7, and 4.7 to less than PM10 micrometer range. While on the third day, it appeared bimodal with 70% contribution in coarse fraction whereas on the fourth
day, distribution appeared unimodal with 66% contribution in alveolar region (<0.4–1.1 μm). Distribution of Ba varied with
respect to particle size, in accordance with the intensity of the fireworks used on different days and distance between the
burning of firecrackers from the monitoring site. 相似文献
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