[Air Microbial Pollution and Health Risk of Urban Black Odorous Water]

Aiming at the possihle air microbial pollution of urban black odorous water the contamination characteristics of bacteria, fungi and total microbe as well as health risks of different types of population within certain distance from the urban black odorous water were studied. The results showed that hbcteria and fungi pollution was primary within offshore 200 m; under near calm condition, there was an aggregation phenomenon of microorganisms within offshore 20 m; the concentrations of bacteria, fungi and total microbe were the highest in the morning, the middle at noon, and the lowest in the afternoon; within offshore 200 m, the width of black odorous water was significantly correlated with the concentrations of bacteria, fungi and total microorganisms; the microbial health risk of residents mainly existed in the offshore 100 m range; at the same offshore distance, the short-term exposure health risk to children was the greatest, followed by women, men to a minimum.