Particle-bound polychlorinated dibenzo-p-dioxins and dibenzo-p-furans (PCDDs/Fs) were analyzed in the coastal air of West Bengal, India. Total PCDD/Fs ranged from 4-2491 fg m-3 with a mean of 355 fg m-3 and their I-TEQ values ranged between 1 to 62.6 fg I-TEQ m-3, with an average of 17.1 fg I-TEQ m-3. The dominant congeners were OCDD (46%) OCDF (14%) 1,2,3,4,6,7,8-HpCDF (11%) and 1,2,3,4,6,7,8-HpCDD (10%) and accounted for &gt;80% to the total PCDDs/Fs. TCDD (29%) &gt; PeCDF (28%) &gt; HxCDF (16%) &gt; PeCDD (13%) were the dominant TEQ contributors. Rough estimates of tolerable daily intake (TDI) show a low health risk of exposure to PCDD/Fs measured in the ambient air of a rural coastal area of West Bengal, India. © 2012 Copyright Taylor and Francis Group, LLC.

Chandra Shekhar Sharma

Department of Chemical Engineering

B. Kumar

S. Kumar

D.P. Mukherjee

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IIT Hyderabad

Human and Ecological Risk Assessment

Levels of Polychlorinated Dibenzo-P-Dioxins (PCDDs) and Polychlorinated Dibenzo-P-Furans (PCDFs) in the Atmosphere (PM10) of a Coastal Area of West Bengal, India

Journal	Human and Ecological Risk Assessment
ISSN	10807039