[Studies on the mechanism of Cr-induced DNA damage in glouse].

Objective: To investigate the mechanism of Cr-induced DNA damage in glouse.

Methods: The studies were conducted at three pH values(pH 6.5, 7.

Health safety of main water pipe materials supplied in China market.

Objective: To assess the health safety of copper, steel and plastic water pipes by field water quality investigations.

Methods: Four consumers were randomly selected for each type of water pipes. Two consumers of every type of the water pipes had used the water pipes for more than 1 year and the other 2 consumers had used the water pipes for less than 3 months.