RAM SINGH, KULBIR SINGH, ARABINDA SHARMA AND CHADETRIK ROUT*
Department of Civil Engineering, M. M. Engineering College, Maharishi Markandeshwar (Deemed to be University),
Mullana, Ambala-133 207 (Haryana), India
*(e-mail: chadetrikrout@gmail.com; Mobile: 89016 28070)
(Received: October 30, 2022; Accepted: March 14, 2023)
ABSTRACT
Assessment of the ambient air quality status near three railway bridges, namely, the Tangari, Ghaggar and Markanda in the state of Haryana, India, was done according to the standard procedures. After sampling, air quality parameters like PM2.5, PM10, NO2, SO2, CO and the noise levels were analyzed and presented numerically. All the permissible limits were considered as per NAAQS limits (prescribed by CPCB) and compared with the observed values. The observed concentrations of NO 2, SO2 and CO were found below the permissible limits. However, in most cases, the observed concentrations of other air quality parameters like PM2.5, PM10 and noise levels, at different sampling locations, were found above the permissible limits of NAAQS as prescribed by CPCB.
Key words : Railway bridge, air quality, PM2.5, PM10, NAAQS, CPCB