Largely uncontrolled exogenous heavy metals (HMs) are released into the sea which eventually deposit in the original inshore sediments. However, the migration of these HMs was commonly overlooked in previous studies, which makes it hard to determine the fate of these HMs and locate the high-risk HMs pollution areas. Therefore, the original inshore areas in Dongying, China were taken as an example, and eight HMs (As, Cd, Cr, Cu, Hg, Pb and Zn) in sediments and multiple geochemical indexes relevant to the properties of sediments were determined to clarify the level of human impacts on the aggregation of HMs and uncover the migration of HMs from nearshore to offshore. The obtained results suggested relatively low pollution of HMs based on the values of EF and E_rⁱ. Due to the intense marine erosion, HMs in the sediments mainly stem from the natural deposition, but are less affected by human activities. Mariculture is widespread but fails to exert its impact on the accumulation of HMs in sediments, mainly due to just the phosphorus, instead of the organic matters, which aggregate effectively. More exogenous HMs are moved from nearshore to offshore so that the offshore rather than nearshore is more susceptible to human activities, confirmed by the higher concentration and EF of HMs in the offshore areas. The migration of HMs may be more related to the altered minerals than the composition of grain size in sediments. The conversion of hydrodynamic conditions induced by runoff reduction may transport more altered minerals along with HMs to a farther area of sea and threaten the broader area of sea.

大量不受控制的外源重金属（HMs）释放到海洋中，最终沉积在原始的近海沉积物中。但是，这些HMs的迁移在以前的研究中通常被忽略，这使得很难确定这些HMs的命运并确定高风险HMs污染区。因此，以东营市原始近海地区为例，确定了沉积物中的八种重金属（砷，镉，铬，铜，汞，铅，锌）和与沉积物性质相关的多种地球化学指标，人类对HM聚集的影响程度，并揭示HM从近岸向近海的迁移。根据EF和E _r ⁱ的值，所得结果表明HMs污染相对较低。。由于强烈的海洋侵蚀，沉积物中的HMs主要来自自然沉积，但受人类活动影响较小。海水养殖十分普遍，但未能对沉积物中HMs的积累产生影响，这主要是由于磷而不是有效聚集的有机物所致。越来越多的外源性HM从近岸转移到离岸，因此离岸而不是近岸更容易受到人类活动的影响，这被近海地区HM的较高浓度和EF所证实。HMs的迁移可能与矿物的变化有关，而不是与沉积物中颗粒大小的组成有关。由径流减少引起的水动力条件的转换可能将更多的改变的矿物与重金属一起运输到更远的海域，并威胁更广阔的海域。