BOREAS TGB-07 RAINWATER HERBICIDE AND ORGANOCHLORINE CONCENTRATION DATA

The BOREAS TGB-07 team measured the concentration and flux of several agricultural pesticides in air and rainwater samples in order to determine the associated yearly deposition rates. This data set contains information on the rainwater concentration of seven herbicides [2,4-dichlorophenoxyacidic_acid (2,4-D), bromoxynil, dicamb, 2-methyl-4-chlorophenoxyacetic acid (MCPA), triallate, trifluralin, and diclop-methyl] known to appear in the atmosphere of the Canadian prairies. Also, the concentration of three herbicides (atrazine, alaclor and metolachlor), two groups of insecticides (lindane and breakdown products and dichlro-diphenyl-trichloroethane (DDT) and breakdown products), and several polychlorinated biphenyls commonly used in the central United States were measured. All of these chemicals are reported, in the literature, to be transported in the atmosphere. Many have been reported to occur in boreal and arctic food chains. The sampling was carried out from June 16 to August 13, 1993 and May 4 to July 20, 1994 at the BOREAS site in the Prince Albert National Park (Waskesiu).BOREAS TGB-07研究团队为明确相关农药的年沉降速率，对空气与雨水样品中的多种农业农药的浓度及通量进行了测定。本数据集涵盖七种除草剂的雨水浓度数据，包括2,4-二氯苯氧乙酸（2,4-dichlorophenoxyacetic acid，2,4-D）、溴苯腈（bromoxynil）、麦草畏（dicamb）、2-甲基-4-氯苯氧乙酸（2-methyl-4-chlorophenoxyacetic acid，MCPA）、野麦畏（triallate）、氟乐灵（trifluralin）以及氯甲丹（diclop-methyl），上述除草剂均已在加拿大大草原地区的大气中被检出。此外，数据集还包含三种除草剂——莠去津（atrazine）、甲草胺（alaclor）、异丙甲草胺（metolachlor），两组杀虫剂：林丹（lindane）及其降解产物、二氯二苯基三氯乙烷（dichlorodiphenyltrichloroethane，DDT，原文拼写为dichlro-diphenyl-trichloroethane）及其降解产物，以及美国中部地区常用的多种多氯联苯（polychlorinated biphenyls，PCBs）的浓度数据。现有文献均证实，上述所有化学品均可通过大气进行传输，其中多种已被检出存在于寒带与北极的食物链中。本次采样于1993年6月16日至8月13日、1994年5月4日至7月20日在加拿大艾伯特王子国家公园（瓦斯基乌）的BOREAS观测站点开展。