The group of the Marine Chemistry applied multiple chemical indicators such as polymetallic elements, non-traditional stable isotopes, and emerging pollutants to trace oceanographic processes. In the contemporary ocean the different chemical indicators, with their unique bioavailability, chemical traits, and origins, can help track specific oceanographic events. The main achievements are as follows:

Apply polymetallic elements and new-type pollutants to trace the laws of substance transport across estuarine interfaces in the marginal seas of China and the characteristics of substance exchange in the marginal seas.

Explore the role of atmospheric deposition on the marine ecosystem by using iron and how phytoplankton absorb nutrients by using δ¹¹⁴Cd. The vertical flux of particulate matter in the Oxygen Minimum Zone (OMZ) sea area of Peru was quantified by using δ ²³⁴Th.  The non-traditional stable isotopes such as δ⁵⁶Fe、δ¹¹⁴Cd, as well as new-type pollutants such as Persistent Organic Pollutants (POPs) and Contaminants of Emerging Concern (CECs) are used to trace the impact of ocean current transport in the Arctic Ocean on the pollutants emitted from human activities and the distribution of elements.