Source apportionment of size-resolved ambient fine particulate matter in Hangzhou

doi:10.7523/j.issn.2095-6134.2014.03.011

Abstract

Abstract:

Samples of ambient fine particulate matter were collected using Andersen cascade sampler. The contributions of secondary organic carbon (SOC) to particulate matter in different sizes were determined by the "OC/EC minimum ratio" technique. The sources of size-resolved fine particulate matter in Hangzhou were analyzed using the CMB model. The results showed that secondary aerosol and vehicle exhaust were the major sources in small-size segment. The contribution of suspended dust, cement dust, and fly ash gradually increased in coarse segment, and the contribution of secondary particles and vehicle exhaust dropped to about 50%.

Key words: fine particulate matter, size-resolved source apportionment, CMB, SOC

CLC Number:

X513

SHEN Jiandong, JIAO Li, XU Chang, HE Xi, YING Fang, HONG Shengmao. Source apportionment of size-resolved ambient fine particulate matter in Hangzhou[J]. , 2014, 31(3): 367-373.

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