Surficial marine sediments were sampled along the south-east coast and in Discover Bay Jamaica. Total elemental composition was determined for the sediments using three techniques. Total mass fractions of Al, As, Br, Ce, Co, Cr, Cs, Eu, Fe, La, Mn, Sb, Sc, Th, U, V, and Zn were determined using instrumental neutron activation analysis; Cu, Ni, Pb, Sr and Zr using energy dispersive X-ray fluorescence; and Hg using a direct mercury analyser. Potential anthropogenic hotspots were assessed using indices including enrichment factor (EF), geoaccumulation index (I_geo), ecological risk (E_r) and potential ecological risk index (R_i). The quality of the sediments was also assessed using the sediment quality guidelines (SQGs). Temperature, pH, salinity, dissolved oxygen and organic carbon content (OC) were determined to assess variation across sample sites. Results indicated moderate to severe ecological risk at sites in Port Royal and Discovery Bay with ecological risk values as high as 381.9.

在东南沿海和牙买加的愉景湾采样了表面海洋沉积物。使用三种技术确定沉积物的总元素组成。使用仪器中子活化分析法测定Al，As，Br，Ce，Co，Cr，Cs，Eu，Fe，La，Mn，Sb，Sc，Th，U，V和Zn的总质量分数；铜，镍，铅，锶和锆利用能量色散X射线荧光；和汞使用直接汞分析仪。使用包括富集因子（EF），地积累指数（I _geo），生态风险（E _r）和潜在生态风险指数（R _i）的指数评估潜在的人为热点）。还使用沉积物质量指南（SQGs）评估了沉积物的质量。确定温度，pH，盐度，溶解氧和有机碳含量（OC），以评估样品位点之间的变化。结果表明，皇家港口和愉景湾地区的生态风险为中度至严重，生态风险值高达381.9。