Data associated with 'Polar bear subpopulation declines due to legacy persist...

Although concentrations of many conventional POPs have decreased in the Arctic over the past few decades, levels of most POPs remain high in Arctic areas, especially in top...尽管近数十年来北极地区多种传统持久性有机污染物（Persistent Organic Pollutants，POPs）的浓度有所下降，但多数此类污染物在北极区域的残留水平仍处于较高状态，尤其在顶层……