Ground-level concentration of nitrogen oxides (NOx) at some traffic intersection points in Calcutta

Authors
Mondal, R Sen, GK Chatterjee, M Sen, BK Sen, S
Citation
R. Mondal et al., Ground-level concentration of nitrogen oxides (NOx) at some traffic intersection points in Calcutta, ATMOS ENVIR, 34(4), 2000, pp. 629-633
Citations number
13
Categorie Soggetti
Environment/Ecology,"Earth Sciences
Journal title
ATMOSPHERIC ENVIRONMENT
ISSN journal
13522310 → ACNP
Volume
34
Issue
4
Year of publication
2000
Pages
629 - 633
Database
ISI
SICI code
1352-2310(2000)34:4<629:GCONO(>2.0.ZU;2-B
Abstract
Results from a year long programme of measuring ground-level concentration of NOx at 19 important traffic intersection points within the city of Calcu tta have been presented. Fortnightly measurements were made with a set of t hree passive samplers along with a control deployed at each of the sites. Results indicate that the NOx concentration level has a seasonal variation. Maximum average concentration of 222 mu g m(-3) was observed during winter and a minimum average concentration of 55 mu g m(-3) was observed during p eak monsoon. (C) 1999 Published by Elsevier Science Ltd. All rights reserve d.