Heavy Metals in Farmland Surrounding the Sanming Steel Plant in Western Fujian: Pollution Characteristics and Risk Assessment

doi:10.11923/j.issn.2095-4050.cjas20191000246

Abstract

Abstract:

The paper aims to clarify the heavy metal pollution and risk in the farmland surrounding the Sanming Steel Plant in western Fujian. We collected 10 surface soil samples (0-20 cm) in May, 2019, determined the contents of Pb, Cu, Zn, Cd, Hg and Ni, and evaluated the levels and risks of heavy metals by the methods of the single pollution index, the Nemero pollution index, and Hk?nson potential ecological hazard index. The results showed that: the contents of heavy metals in the studied area exceeded the background value of soil environment in Fujian, except that Hg exceeded the standard rate by 80%; correlation analysis demonstrated that: Pb, Cu, Zn, Cd, Ni in soil were homologous; the evaluation results demonstrated that: the pollution degree of heavy metals in the soil surrounding the Sanming Steel Plant was: Cd>Pb>Ni>Zn>Cu>Hg; all the soils in the studied area were heavily polluted, reaching very strong and extremely strong ecological risk level. Therefore, more attention should be paid to the ecological environment problems caused by heavy metal pollution in the farmland surrounding the Sanming Steel Plant, the prevention and control of Cd and Pb in soil should be the priority to reduce their ecological risks.

Key words: Sanming Steel Plant, Soil, Heavy Metal Pollution, Pollution Characteristic, Risk Assessment, Pollution Index

CLC Number:

X825

Tian Tian, Yang Ting, Zou Xianmei, Chen Chunle. Heavy Metals in Farmland Surrounding the Sanming Steel Plant in Western Fujian: Pollution Characteristics and Risk Assessment[J]. Journal of Agriculture, 2021, 11(6): 42-46.

Figures/Tables 6

References 22

[1]	谢团辉, 胡聪, 陈炎辉, 等. 某炼钢厂周边农田土壤重金属污染状况的调查与评价[J]. 农业资源与环境学报, 2018,35(2):155-160.
[2]	陈轶楠, 马建华, 张永清. 晋南某钢铁厂及周边土壤重金属污染与潜在生态风险[J]. 生态环境学报, 2015,24(9):1540-1546.
[3]	Dragović R, Gajić B, Dragović S, et al. Assessment of the impact of geographical factors on the spatial distribution of heavy metals in soils around the steel production facility in Smederevo (Serbia)[J]. Journal of Cleaner Production, 2014,84:550-562. doi: 10.1016/j.jclepro.2014.03.060 URL
[4]	王世玉, 吴文勇, 刘菲, 等. 典型污灌区土壤与作物中重金属健康风险评估[J]. 中国环境科学, 2018,38(4):1550-1560.
[5]	Reboredo F H, João P, Lidon F, et al. Heavy metal content of edible plants collected close to an area of intense mining activity (southern Portugal)[J]. Environmental Monitoring and Assessment, 2018,190(8):484. doi: 10.1007/s10661-018-6844-7 URL
[6]	刘晶, 滕彦国, 崔艳芳, 等. 土壤重金属污染生态风险评价方法综述[J]. 环境监测管理与技术, 2007,19(3):6-11.
[7]	范拴喜, 甘卓亭, 李美娟, 等. 土壤重金属污染评价方法进展[J]. 中国农学通报, 2010,26(17):310-315.
[8]	许绪成, 许继影, 叶传红, 等. 煤矸石堆周围土壤重金属空间分布特征与评价[J]. 赤峰学院学报:自然科学版, 2018,34(9):98-101.
[9]	孙雷, 孙世群, 杨晨. 几种综合指数方法在土壤重金属污染评价中的应用——以淮南矿区为例[J]. 赤峰学院学报:自然科学版, 2013,29(22):34-36.
[10]	曾民, 郭蓉, 杨树明, 等. 云南省个旧市农产品产地土壤重金属污染与生态风险评价[J]. 土壤与作物, 2019,8(1):85-92.
[11]	马瑞丰, 周碧青, 刘金福, 等. 福建省重金属企业分布概况及行业污染问题分析[J]. 污染防治技术, 2016(1):19-22.
[12]	包新星. 福建省尤溪县铅污染环境调查及其防治对策初探[J]. 中国农业信息, 2012(21):96-97.
[13]	王学礼, 常青山, 侯晓龙, 等. 三明铅锌矿区植物对重金属的富集特征[J]. 生态环境学报, 2010(1):108-112.
[14]	环境保护部. HJ 803—2016,土壤和沉积物12种元素的测定—王水提取——电感耦合等离子体质谱[S]. 北京:中国环境科学出版社, 2016:1-6.
[15]	Stark S C, Snape I, Graham N J, et al. Assessment of metal contamination using X-ray fluorescence spectrometry and the toxicity characteristic leaching procedure (TCLP) during remediation of a waste disposal site in Antarctica[J]. Journal of Environmental Monitoring, 2008,10(1):60-70. doi: 10.1039/B712631J URL
[16]	陈振金, 陈春秀, 刘用清, 等. 福建省土壤环境背景值研究[J]. 环境科学, 1992(13):70-76.
[17]	丛俏, 袁星, 曲蛟, 等. 钼矿区周边农田土壤中重金属污染状况的分析与评价[J]. 中国环境监测, 2009,25(1):47-51.
[18]	钟晓兰, 周生路, 赵其国. 长江三角洲地区土壤重金属污染特征及潜在生态风险评价——以江苏太仓市为例[J]. 地理科学, 2007,27(3):395-400. doi: 10.13249/j.cnki.sgs.2007.03.395
[19]	陈雯, 龙翔, 王宁涛, 刘慧. 福州市土壤重金属污染现状评价与分析[J]. 安全与环境工程, 2015,22(5):68-72.
[20]	Taylor M D. Accumulation of cadmium derived from fertilisers in New Zealand soils[J]. Science of the Total Environment, 1997,208(1/2):123-126. doi: 10.1016/S0048-9697(97)00273-8 URL
[21]	王莹, 赵全利, 胡莹, 等. 上虞某铅锌矿区周边土壤植物重金属含量及其污染评价[J]. 环境化学, 2011,30(7):1354-1360.
[22]	马鑫, 尹刚, 吴乐知. 黄石市某钢铁厂周边苔藓植物重金属含量研究及污染评价[J]. 湖北农业科学, 2019(10):51-56.

步骤	温度/℃	升温时间/min	保持时间/min
1	120	5	5
2	150	5	10
3	180	5	40

步骤	温度/℃	升温时间/min	保持时间/min
1	120	5	5
2	150	5	10
3	180	5	40

P_i	污染水平	内梅罗指数	污染水平
≤1.0	未污染	P_N≤0.7	清洁
1.0<P_i≤2.0	轻度污染	0.7<P_N≤1.0	尚清洁
2.0<P_i≤3.0	中度污染	1.0<P_N≤2.0	轻度污染
P_i>3.0	重度污染	2.0<P_N≤3.0	中度污染
		P_N>3.0	重度污染

P_i	污染水平	内梅罗指数	污染水平
≤1.0	未污染	P_N≤0.7	清洁
1.0<P_i≤2.0	轻度污染	0.7<P_N≤1.0	尚清洁
2.0<P_i≤3.0	中度污染	1.0<P_N≤2.0	轻度污染
P_i>3.0	重度污染	2.0<P_N≤3.0	中度污染
		P_N>3.0	重度污染

采样点	Pb	Cu	Zn	Cd	Hg	Ni
S1	615.40	60.70	246.60	3.27	0.135	35.01
S2	848.79	78.33	254.71	5.26	0.094	41.41
S3	3182.89	71.76	336.30	14.13	0.114	43.93
S4	652.86	40.32	245.50	3.39	0.068	32.86
S5	599.94	51.47	219.41	2.36	0.129	42.45
S6	1095.47	88.28	280.31	7.31	0.095	52.42
S7	1549.55	99.60	344.66	27.36	0.095	70.85
S8	351.70	47.20	195.90	4.16	0.105	39.93
S9	230.92	32.86	168.50	1.54	0.080	34.06
S10	1472.95	88.14	314.14	12.97	0.042	58.86
背景值	34.9	21.6	82.7	0.054	0.081	13.5