This study analyzes the heavy metals in the sediments, including Zn, Pb, Cu, Cr, and sediment grain size. It evaluates the degree of pollution and ecological risks of the four heavy metals in the Pearl River Delta and the Beibu Gulf using sediment accumulation coefficient method and HÀKANSON L potential ecological hazard index method. We compare the results between the Pearl River Delta and the Beibu Gulf. The comparison shows that the clay and silt enrichment of heavy metals in sediment is large; Cu in the two regions reached the serious level of pollution, Zn, Pb and Cr reached the middle level of pollution in the Pearl River estuary and in part of the Beibu Gulf. The potential ecological risks in the Pearl River estuary range from lower to higher level, and those in the Beibu Gulf are lower. The Pearl River estuary has been severely damaged due to human activities, and the Beibu Gulf, as a national development site, should receive priority to prevent pollutions, and adapt policies to develop and protect the natural environment.
TANG Bo
,
LONG Jiang-ping
,
JIN Lu
,
XU Dong
,
LI Tuan-jie
. The contrast of heavy metals’ ecological risks in marine sediments between the Beibu Gulf and the Pearl River Delta[J]. Journal of Tropical Oceanography, 2015
, 34(3)
: 75
-81
.
DOI: 10.11978/j.issn.1009-5470.2015.03.010
1 程岩, 刘月, 李富祥. 2011. 鸭绿江口及毗邻浅海沉积物重金属富集特征与潜在生态风险比较[J]. 环境科学研究, 24(5): 516-525.
2 邓保乐, 祝凌燕, 刘慢, 等. 2011. 太湖和辽河沉积物重金属质量基准及生态风险评估[J]. 环境科学研究, 24(1): 33-42.
3 甘华阳, 梁开, 郑志昌. 2010. 珠江口沉积物的重金属背景值及污染评价分区[J]. 地球与环境, 38(3): 344-350.
4 国家海洋局第三研究所. 1997. GB/3097—1997 国家海水水质标准[S]. 北京: 环境科学出版社: 15-21.
5 国家海洋环境监测中心. 2007a. GB17378.3—2007 海洋监测规范 第3部分: 样品采集、贮存与运输[S]. 北京: 中国标准出版社: 1-13.
6 国家海洋环境监测中心. 2007b. GB17378.5—2007 海洋监测规范 第5部分: 沉积物分析[S]. 北京: 中国标准出版社: 1-93.
7 雷富, 张荣灿, 陈宪云, 等. 2013. 夏季广西北部湾近岸海域海水和表层沉积物中重金属污染现状及评价[J]. 海洋技术, 32(2): 94-100.
8 李永进, 汤玉喜, 唐洁, 等. 2011. 洞庭湖滩地重金属分布及其生态风险评价[J]. 中南林业科技大学学报, 31(2): 55-59.
9 刘成, 王兆印, 何耘, 等. 2002. 环渤海湾诸河口潜在生态风险评价[J]. 环境科学研究, 15(5): 33-37.
10 乔永民, 黄长江, 杨扬. 2009. 粤东拓林湾沉积物重金属背景值初步研究[J]. 热带海洋学报, 28(2): 81-85.
11 任平, 王小庆. 2005. 沉积物中重金属元素的来源及其含量的影响因素[J]. 洛阳工业高等专科学校学报, 3(15): 16-17.
12 王增焕, 林钦, 李纯厚, 等. 2004. 珠江口重金属变化特征与生态评价[J]. 中国水产科学, 11(3): 214-219.
13 韦彩嫩, 牛红义, 吴群河, 等. 2011. 珠江(广州河段)表层沉积物中重金属的粒度效应[J]. 环境科学与管理, 36(10): 53-56.
14 徐庆, 钱瑾, 张毓祥, 等. 2011. 上海市黄浦江表层沉积物重金属污染评价[J]. 中国环境监测, 27(3): 89-92.
15 HÀKANSON L. 1980. An ecological risk index for aquatic pollution control: A sediment ecological approach[J]. Water Research, 4(8): 975-1001.
16 HE MENGCHANG, WANG ZIJIAN, TANG HONGXIAO. 1998. The chemical, toxicological and ecological studies in assessing the heavy metal pollution in le an river, China[J]. Water Research, 2(32): 510-518.
17 VAROL M. 2011. Assessment of heavy metal contamination in sediments of the Tigris River (Turkey) using pollution indices and multivariate statistical techniques[J]. Journal of Hazardous materials, 195: 355-364.
