Abstract：To explore the pollution characteristics and the potential ecological risk of heavy metals in PM2.5 of Tianjin, the main heavy metals such as Zn, Ti, Mn, Pb, Cu, Cr, Co, As, Cd and Hg were detected, and the pollution status was evaluated with enrichment factors and Hakanson potential ecological risk index, respectively. The results showed that the pollution degree of the heavy metals followed the order Zn>Ti>Mn>Pb>Cu>Cr>Co>As>Cd>Hg at the urban and Zn>Ti >Pb >Mn>Cr>Cu>Co>As>Cd>Hg at Wuqing. The ecological risk assessment of heavy metals showed that the ecological risk of Ti and Mn were basically pollution-free. As, Cr and Co existed certain pollution. The potential ecological risk of Cu、Zn、Pb and Cd was high, while ecological harm degree of Cd was extremely strong, the whole potential ecological risk degree (1381.1at the urban and 1251.1at Wuqing) was very strong.
姚青, 韩素芹, 蔡子颖. 天津采暖期大气PM2.5中重金属元素污染及其生态风险评价[J]. 中国环境科学, 2013, 33(9): 1596-1600.
YAO Qing, HAN Su-Qin, CAI Zi-Ying. The pollution characteristics and potential ecological risk of heavy metals in PM2.5 during heating season in Tianjin. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(9): 1596-1600.
