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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue May 2010, 31 (3)                                                                                                             Back



abstract_25

Concentration of nitrite in? respirable particulate matter of

ambient air in Vadodara, Gujarat, India

 

Sukesh Narayan Sinha*, N.M. Desai, G.M. Patel, M.M. Mansuri and V. Shivgotra

 

National Institute of Occupational Health, Meghaninagar, Ahmedabad - 380 016, India

(Received: April 14, 2007; Revised received: November 06, 2007; Re-revised received: December 22, 2007; Accepted: February 10, 2008)

 

Abstract: Water extract of respirable particulate matter (RPM) was analyzed by Ion chromatography technique to investigate the presence of nitrite (NO2) as secondary aerosol in ambient environment. The nitrite particulates undergo photo hydroxyl radical reaction in environment produce nitrous acid, which reacts with metal and absorbs on RPM as water-soluble metal salt. The mean concentration of nitrite was 20.86 ?g m-3 in ambient environment.? Regression analysis showed that the relationship for respirable particulate matter and nitrite (RPM-NO2, R2=0.742) was positively significant. We are reporting the presence of nitrite as an aerosol in ambient environment.

Key words: Nitrite, Ion chromatography, Ambient environment

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