Lead Contamination of Drinking Water Stagnated in Household Pipe
- VernacularTitle:室内饮用水管滞留水的铅污染
- Author:
Changjun HU
;
Yunxi CHEN
;
Linqi NING
- Publication Type:Journal Article
- Keywords:
Lead;
Water pollution;
Drinking water
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate lead pollution of drinking water stagnated in household pipe and its characteristic, and provide the scientific basis for safe and health consumption of drinking water. Methods 30 taps in households were randomly chosen as objects. According to the stagnated time the water samples were divided into group A (12-13 hours), group B (7-8 hours) and group C (3-4 hours). The samples were collected in 0 min, 1 min and 2 min after opening taps. Lead levels in the samples were determined by atomic absorption spectrometry (AAS), whose comparative analysis was performed by SPSS software. In total, 320 samples were analyzed. Results In group A, lead concentrations (geometric mean, the same for latter) of water samples in 0 min, 1 min and 2 min were 61.33, 12.27and 5.47 ?g/L respectively, but they were 33.90, 9.13 and 4.59 ?g/L in group B,and 11.37, 6.29 and 4.27 ?g/L in group C. There were significant differences among three groups (P
