Annual changes and seasonal variations of Cd in Jiaozhou Bay 1979-1983

DOI

10.2991/icmmcce-17.2017.279How to use a DOI?

Keywords

Cd; Annual change; Seasonal variation; Jiaozhou Bay.

Abstract

This paper analyzed the annual change and seasonal variation of Cd in Jiaozhou Bay during 1979-1983. Results showed that the highest values of Cd contents in 1979-1982 were confirm to Grade I (1.00 g L-1) of National Sea Water Quality Standard (GB 3097-1997), yet in 1983 were Grade II. For temporal changes, Cd contents were showing increasing trends during 1979-1983, indicating the increasing of Cd input to the bay from human activities. For seasonal variation, Cr contents in spring during 1979-1983 were relative low and were confirm to Grade I, while in summer and autumn were relative high and the highest values of Cd contents were confirm to Grade II. These indicated that the input of Cr to the bay was different in different season. In general, the pollution level of Cd were increasing after reform and opening-up due to the rapid increase of industry.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Dongfang Yang
AU  - Qiang Wang
AU  - Ming Wang
AU  - Zhikang Wang
AU  - Sixi Zhu
PY  - 2017/09
DA  - 2017/09
TI  - Annual changes and seasonal variations of Cd in Jiaozhou Bay 1979-1983
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 1587
EP  - 1590
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.279
DO  - 10.2991/icmmcce-17.2017.279
ID  - Yang2017/09
ER  -