[Source and air-sea fluxes of heavy metals in the atmospheric particles of East China Sea].

From 2006 to 2007, four surveys for marine atmosphere in East China Sea were carried out included different seasons (spring, summer, autumn and winter). Based on the survey data of heavy metals in marine atmospheric particles, analyzed the source of heavy metals by the calculation of Enrichment Factors, calculated the air-sea fluxes via dry deposition. The results showed, comparing with the crustal and seawater, the heavy metals including Cu, Pb, Cd and Zn were highly concentrated, mainly from the pollutants of human activities.

Assessing surface water quality of the Yangtze Estuary with genotoxicity data.

The present study investigated the genotoxicity of the surface water samples from the Yangtze Estuary with the Ames test in three seasons. Several important chemical parameters, such as COD inorganic nitrogen, active phosphate and heavy metals, were also analyzed at the same time. According the results, surface water samples from the south branch and a few of samples at the seaward end of the Yangtze Estuary show positive genotoxicity in some seasons.

Contamination of shellfish from Shanghai seafood markets with paralytic shellfish poisoning and diarrhetic shellfish poisoning toxins determined by mouse bioassay and HPLC.

This paper reports the results of investigations of shellfish toxin contamination of products obtained from Shanghai seafood markets. From May to October 2003, 66 samples were collected from several major seafood markets. Paralytic shellfish poisoning (PSP) and diarrhetic shellfish poisoning (DSP) toxins in shellfish samples were monitored primarily by a mouse bioassay, then analysed by HPLC for the chemical contents of the toxins.