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Journal ArticleDOI

Polynuclear aromatic hydrocarbons in the ambient air of Delhi

TLDR
In this article, the determination of total polynuclear aromatic hydrocarbons (PAH) in the ambient air of Delhi was done for a period of six months at five sampling stations.
Abstract
This investigation is concerned with the determination of total polynuclear aromatic hydrocarbons (PAH) in the ambient air of Delhi. Air sampling was done for a period of six months at five sampling stations. PAH was determined by the quinine sulphate method. A city average profile was obtained; seasonal variation of PAH concentration, as well as its correlation with total suspended particulates (TSP) and wind‐velocity, were ascertained.

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Journal ArticleDOI

Occurrence of acid rain over Delhi.

TL;DR: The pH of the rain water was found to be more than 5.6, showing alkalinity during the early phase ofmonsoon, but during the late phase of monsoon pHtendency was towards acidity due to lack of proper neutralization of acidic ions.
Journal ArticleDOI

Speciation of atmospheric polycyclic aromatic hydrocarbons (PAHs) present during fog time collected submicron particles.

TL;DR: In winter and foggy days, wood and coal combustion and biomass burning also significantly contribute to the PAH levels, however, diagnostic ratio suggests diesel emissions as the prime source of PAHs at this sampling site.
Journal ArticleDOI

Characterisation of Indoor PM10 in Residential Areas of Delhi

TL;DR: The relationship between indoor and outdoor concentrations of fine and coarse fractions of PM10 with respect to their chemical composition was investigated simultaneously at two different localities in Delhi as mentioned in this paper, where the average contribution of the fine fraction indoors for Sites I and II respectively was 51 and 53% of the total PM10 and outdoors was 43 and 41%.
Journal ArticleDOI

Monitoring of PAHs (Fluoranthene and Benzo(a)Anthracene) in Ambient Air of Ghaziabad Area of National Capital Region and Control of Air Pollution by Triveni Wood

TL;DR: In this paper , the impacts of Fluoranthene and Benzo (a) Anthracene PAHs pollutants on the health of peoples residing in Ghaziabad area of National Capital Region were analyzed.
References
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Journal Article

Polynuclear aromatic hydrocarbons in the water environment

TL;DR: Because of the ubiquity of PAH in the environment, it is impossible to prevent completely man's exposure to them; nevertheless their surveillance should be continued and their concentrations in the Environment should be reduced where practicable.
Journal ArticleDOI

Incidence and significance of polynuclear aromatic hydrocarbons in the water environment

TL;DR: In this article, the significance of polynuclear aromatic hydrocarbons in the water environment was investigated and the authors concluded that they are of great importance to the environment and the human health.
Journal ArticleDOI

Patterns in airborne polynuclear hydrocarbon concentrations at four Los Angeles sites.

TL;DR: Absolute levels of PAH are much below those found before imposition of stationary source emission controls, but have not changed much further since the late 1950’s.
Journal ArticleDOI

Aircraft engines as a source of arcinogenic pollution of the environment [benzo(a)pyrene studies]

TL;DR: Spectrofluorescent methods of analysis have shown that soot and exhaust products of aviation engines, both piston and turbine, contain benzo(a)pyrene (BP) and its content diminishes with the distance from the runway.
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