Meteorology

Environmental chemistry

New delhi

TRACE (psycholinguistics)

Geography

Philosophy

Environmental science

Environmental engineering

Metropolitan area

Linguistics

Trace gas

Archaeology

Organic chemistry

Chemistry

Particulates

Sustainable Cities and Society

• The spatiotemporal characteristics of PM 10 , PM 2.5 and gaseous pollutants are examined. • High degree of homogeneity was observed for PM 2.5 concentrations across all sites in Delhi. • High PM and gaseous pollutants (except O 3 ) concentrations were observed during winter. • Local sources dominate PM concentrations at most sites across Delhi and the NCR region. • Currently configured network does not permit evaluation of long-range transport between Delhi and the NCR (and vice-versa). A key challenge in controlling Delhi's air quality is a lack of clear understanding of the impacts of emissions from the surrounding National Capital Region (NCR). Our objectives are to understand the limitations of publicly available data, its utility to determine pollution sources across Delhi-NCR and establish seasonal profiles of chemically active trace gases. We obtained the spatiotemporal characteristics of daily-averaged particulate matter (PM 10 and PM 2.5 ) and trace gases (NO X , O 3 , SO 2 , and CO) within a netwo...

Four-year assessment of ambient particulate matter and trace gases in the Delhi-NCR region of India