During a cruise in 2016, samples of clean seawater were collected, and the first high-quality dataset of total dissolvable Pb concentration ([TDPb]) was developed for the upper 750 m of the low-latitude Northwestern Pacific Ocean (NWPO). The distribution of [TDPb] was influenced by the low-latitude NWPO current system. The surface [TDPb] ranged from 22 to 60 pmol/kg, with two significant maxima occurring in the North Equatorial Current (NEC) and the Kuroshio Current (KC). The vertical [TDPb] ranged from 16 to 70 pmol/kg. The [TDPb] profile to the north of 13°N, where the NEC occupys, was characterized by a significant sub-surface maximum, and this feature extended eastward to the North Equatorial Countercurrent (NECC) and possibly, to the Mindanao Current (MC). In the area south of 5°N, which is affected by currents originating from the eastern equator and the southern hemisphere, [TDPb] was greatly reduced and its distribution was uniform vertically. The vertical Pb maximum characteristic was continuous throughout the North Pacific subtropical gyre at σ_θ = 25–26.2, which was associated with high surface Pb at 30°N–40°N in Northwestern Pacific. The lateral transport of Pb in the NEC along 130°E amounted to approximately 16.8–22.5 Gg/yr, which could be considered to be the convergence budget of the advection transport of the North Pacific. With the bifurcation of the NEC, approximately 4.5–9.0 Gg/yr of Pb was distributed into the northward-flowing KC which rejoins the subtropical circulation of the North Pacific, while another 7.8–18.0 Gg/yr of Pb was distributed into the southward-flowing MC, which joins the tropical circulation of the Pacific or enters the Indian Ocean via the Indonesian through-flow (ITF). The distribution pattern of Pb in the low-latitude western Pacific is influenced by the western boundary current system and possible changes associated with the climate change.

在2016年的一次航行中，收集了干净的海水样本，并为低纬度西北太平洋（NWPO）的上部750 m开发了第一个高质量的总可溶Pb浓度（[TDPb]）数据集。[TDPb]的分布受低纬NWPO当前系统的影响。表面[TDPb]的范围为22至60 pmol / kg，在北赤道洋流（NEC）和黑潮洋流（KC）中出现两个显着的最大值。垂直[TDPb]范围为16至70 pmol / kg。NEC所处北纬13°N以北的[TDPb]剖面的特征是明显的地下最大值，并且该特征向东延伸至北赤道逆流（NECC），并可能延伸至棉兰老流（MC） ）。在5°N以南的地区，[TDPb]受东赤道和南半球的电流影响而大大减小，并且其分布在垂直方向上是均匀的。垂直铅最大特征在整个北太平洋亚热带回旋处为σ连续_θ = 25–26.2，这与西北太平洋30°N–40°N处的高表面Pb有关。NEC沿130°E的铅横向输送量约为16.8-22.5 Gg / yr，这可以认为是北太平洋对流输送的收敛预算。随着NEC的分叉，大约有4.5–9.0 Gg / yr的Pb被分配到向北流动的KC中，这又重新加入了北太平洋的亚热带环流，而另外7.8–18.0 Gg / yr的Pb被分配到了南太平洋。流动的MC，它加入太平洋的热带环流或通过印度尼西亚的通流（ITF）进入印度洋。铅在低纬度西太平洋的分布模式受西部边界流系统和与气候变化有关的可能变化的影响。