Abstract：Air samples in urban and suburban in Fuzhou were collected by Hi-vol air sampler in winter and summer in 2010, and concentrations of HCHs and DDTs were analyzed by GC-μECD. The concentrations of ΣHCHs ranged from 28.04 to 413.0 pg/m3. In general, the residue level of HCHs in air in Fuzhou was as follows: urban > suburban, summer > winter, the gaseous phase > the particle phase. Concentrations of HCHs in summer were higher than those in winter in the gaseous phase while the particle phase had the opposite trend. Concentrations of HCHs in the gaseous phase were significantly higher than those in the particle phase in summer, while the concentrations of HCHs in the gaseous phase were almost equal to those in the particle phase in winter. δ-HCH had highest relative content in all samples. The concentrations of ΣDDTs spanned the range of 178.3~897.8 pg/m3. In general the residue level of DDTs was as follows: suburban > urban, winter > summer, the particle phase > the gaseous phase. Concentrations of DDTs in winter were higher than those in summer in the particle phase while the gaseous phase had the opposite trend. DDTs concentrations in the particle phase were significantly higher than those in the gaseous phase in winter, while there were no significant differences between particle and gaseous phases in summer. o,p′-DDT had highest relative content in the gaseous phase while o,p′-DDT and p,p′-DDT in the particle phase. Source analysis indicated that HCHs was not historic pollution in Fuzhou atmosphere, and the use or newly input of lindane might exist. There maybe newly input of DDTs and large amount input of dicofol in Fuzhou.
毕峻奇, 黄幸然, 郑丽丽, 郭萍萍, 易志刚. 福州城郊冬夏两季大气中HCHs和DDTs分布特征[J]. 中国环境科学, 2013, 33(4): 577-583.
BI Jun-Qi, HUANG Xing-Ran, ZHENG Li-Li, GUO Ping-Ping, YI Zhi-Gang. Distribution characteristics of HCHs and DDTs in the atmosphere in winter and summer in the urban and suburban of Fuzhou. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(4): 577-583.
