A survey was carried out in the central and north part of the Huanghai Sea (34.5°~37.0°N, 120.5°~124.0°E) during June 12~27, 2000. It was found
The concentrations of nitrous oxide varies between 57 and 329 nmol/dm3, saturation is 674%~4 134% in the Zhujiang River Estuary.This suggests that the area is an