Atmospheric particulate samples were collected during three typhoons in 2006 (Chanchu, Bilis, and Kaemi) from Dongshan and Pingtan Islands along the coastal areas of Fujian Province and were analyzed for organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs). The observations were divided into three periods, namely, pre-typhoon, typhoon, and post-typhoon, to analyze the variations in POP concentrations. The results showed that the PCB and OCP concentrations had daily variations during the pre-typhoon period, while different variation trends were observed during the typhoon periods. The concentrations of those contaminants increased dramatically during typhoon Chanchu (the total concentrations of PCBs and OCPs increased 25 and 24 times, respectively), whereas those values decreased slightly during the typhoon Bilis and Kaemi. However, POPs levels all decreased noticeably during the three post-typhoon periods due to heavy rainfall caused by the typhoons. Observations of an ensemble of factors, including the typhoon migration routes, landfall season, air mass origins and meteorological conditions, and the typhoon migration route was the dominant factor to cause high levels of POPs during the typhoon Chanchu period. Toxicity assessment indicated that the effect of PCB and OCP during the typhoon period should be a concern, which could pose a high potential health risk to organisms.

2006年在福建省沿海地区的东山和平潭群岛的三个台风（Chanchu，Bilis和Kaemi）中收集了大气颗粒物样品，并分析了有机氯农药（OCP）和多氯联苯（PCBs）。将观测分为三个阶段，即台风前，台风和台风后，以分析POP浓度的变化。结果表明，台风前期PCB和OCP浓度每天都有变化，而台风期则有不同的变化趋势。在台风Chanchu期间，这些污染物的浓度急剧增加（PCB和OCP的总浓度分别增加了25倍和24倍），而在Bilis和Kaemi台风期间，这些污染物的含量却略有下降。然而，由于台风造成的大雨，POPs含量在台风后的三个时期均显着下降。观测到包括台风迁移路线，登陆季节，空气质量起源和气象条件在内的一系列因素，而台风迁移路线是导致Chanchu台风期间高水平POPs的主要因素。毒性评估表明，在台风期间多氯联苯和OCP的影响应引起关注，这可能对生物体构成很高的潜在健康风险。台风Chan初期间，台风迁移途径是造成持久性有机污染物高水平的主要因素。毒性评估表明，在台风期间多氯联苯和OCP的影响应引起关注，这可能对生物体构成很高的潜在健康风险。台风Chan初期间，台风迁移途径是造成持久性有机污染物高水平的主要因素。毒性评估表明，在台风期间多氯联苯和OCP的影响应引起关注，这可能对生物体构成很高的潜在健康风险。