The spatial distributions of atrazine and six types of metabolites in water, suspended particulate sediment (SPS), and surface sediment in an estuary-to-bay system were analyzed. The water distance of metabolites demonstrated that degradation was more active in coastal zone and the Desisopropylatrazine had the shortest half-distance of 1.6 Km from the river mouth. The dechlorination-hydroxylation metabolites were the dominant pollutants in the bay and the Didealkyl-atrazine (DDA), Deisopropylhydroxy-atrazine (DIHA), and Deethylhydroxy-atrazine (DEHA) had higher concentrations in all three mediums. The DDA had the biggest content (6.58 ng/g) in the coastal sediment. The DIHA was the only pollutant had bigger concentration during the transport, and the others continually degraded with smaller value. The spatial distributions of pollutants in sediment had different patterns in water with SPS. The water-particle phase partition coefficient (K_p) analysis indicated that the partition process was more active in the estuary than the bay, and the metabolites had stronger capacity than atrazine. The correlations between K_p with octanol-water partitioning coefficient showed their physic-chemical properties were the important factors for vertical partition between seawater with sediment. The correlations with marine environmental factors demonstrated that the metabolite type was the direct factor for the redistributions during the transport.

分析了河口至海湾系统中water去津和六种代谢物在水中，悬浮颗粒沉积物（SPS）和表面沉积物的空间分布。代谢物的水距离表明，降解在沿海地区更为活跃，而去异丙基at去津距河口的最短半距离为1.6 Km。海湾地区的主要污染物为脱氯-羟化代谢产物，在所有三种培养基中，二烷基-at去津（DDA），异异丙基-at去津（DIHA）和脱乙基-at去津（DEHA）均具有较高的浓度。DDA在沿海沉积物中含量最大（6.58 ng / g）。DIHA是唯一在运输过程中浓度较高的污染物，其他污染物则以较小的价值不断降解。SPS在水中沉积物中污染物的空间分布具有不同的模式。水颗粒相分配系数（K _p）分析表明，河口区的分配过程比海湾区更活跃，代谢产物的容量也比阿特拉津强。K _p与辛醇-水分配系数之间的相关性表明，其理化性质是造成海水与沉积物垂直分配的重要因素。与海洋环境因素的相关性表明，代谢物类型是运输过程中重新分布的直接因素。