Details

Autor(en) / Beteiligte

• Zhang, Yu-Xi
• Xiang, Xiao-Ping
• Zhang, Ying
• Chen, Xi
• Liu, Jing-Tao
• Wang, Jin-Cui
• Zhang, Yuan-Jing
• Sun, Ji-Chao

Titel

Distribution and sources of arsenic in Yangzonghai Lake, China

Ist Teil von

• Huanjing kexue, 2012-11, Vol.33 (11), p.3768

Ort / Verlag

China

Erscheinungsjahr

2012

Quelle

MEDLINE

Beschreibungen/Notizen

• By collecting water and sediment samples from Yangzonghai Lake and analyzing the total amount and speciation of arsenic, the spatial distribution of arsenic in surface water and sediments was analyzed, the current status of arsenic pollution were estimated, the anthropogenic contribution rate and the arsenic reserve in the lake were calculated respectively. Meanwhile, the sources of arsenic were investigated. The results indicated that the total arsenic content in Yangzonghai Lake was 71.96-101.2 microg x L(-1) in April, 2010, and increased slightly with depth. Dissolved arsenic content was 68.14-96.72 microg x L(-1), with As (III) accounting for 32%. The health risk level of arsenic in the water was 4.77 x 10(-4) - 6.66 x 10(-4) a(-1), posing a considerable threat to the surrounding environment. Arsenic content in sediments lied between 6.05-396.49 mg x kg(-1). In sediments at the depths of 0-2, 2-4, 4-6, 6-8 and 8-10 cm, the average arsenic contents were 155.66, 52.01, 29.78, 19.22 and 17.52 mg x kg(-1) res