In-situ passive sampling device and application based on physicochemical and bio-coupling monitoring

The invention discloses an in-situ passive sampling device and an application based on physicochemical and bio-coupling monitoring. The device comprises a foam plastic disc located on the water surface, and a supporting and connecting device, a fish breeding device and a sampling device located below the water surface. The in-situ passive sampling device comprises three passive samplers and a fishculture device, wherein the fish culture device can ensure that the living environment of the fish is maintained in long-term detection, and the survival rate of the fish is kept. When the device isapplied to water quality safety assessment of centralized drinking water sources, long-term cumulative effects of pollutants are evaluated by a combination of chemical indicators + biological indicators + microbial indicators, so that the actual condition of biological exposure environment can be approached, especially in the case of a sudden environmental pollution event, an assessment evidence can be provided for changes