Heavy metal pollution and the risk from tidal flat reclamation in coastal areas of Jiangsu, China

Cao, Zhiqiang; Wang, Li; Yang, Linsheng; Yu, Jiangping; Lv, Jia; Meng, Miaojing; Li, Guosheng

doi:10.1016/j.marpolbul.2020.111427

Cited by 39 publications

(19 citation statements)

References 59 publications

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“…The PI method is used to evaluate the pollution status of the coastal environment and aquatic products in southern Zhejiang. When evaluating the pollution status of petroleum hydrocarbon, the PI method is generally used (Kowalska et al, 2018;Cao et al, 2020), and the calculation formula is: Where P i, C i, C io represents the evaluated results, the actual measured data, and evaluation standard of petroleum hydrocarbon respectively. The evaluation standard of TPH is 0.05 mg L -1 in surface seawater (GB11607-1989 andGB 3097-1997), 500 mg kg -1 in surface sediment (GB 18668-2002) and 15 mg kg -1 in aquatic products (GB2762-2012) respectively.…”

Section: Single Pollution Index (Pi) and Nemerow Pollution Index (Npi)mentioning

confidence: 99%

Pollution Level and Health Risk Assessment for the Total Petroleum Hydrocarbon in the Marine Environment, and Aquatic Products From the Southern Sea Area of Zhejiang Province, China

Zhou

et al. 2021

Preprint

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In order to evaluate the pollution level and risk of total petroleum hydrocarbon (TPH), seawater, sediments, and organisms were sampled from the southern sea area of Zhejiang province (Yangtze River Delta, China) between 2017 and 2019. Petroleum hydrocarbons were widely present in the aquatic environment as well as in products, and their concentrations were highly variable. The average value of PI exceeded 1 from 2017 to 2018, 45.46% to 69.19% samples for seawater and 56.87% to 50.00% samples for sediment were polluted. The results showed significant differences in the TPH concentration in various aquatic organism species. The average TPH value in aquatic organisms order was bivalve＞shrimp＞crab＞fish, further reflecting the ability to accumulate and metabolize TPH exists differently among aquatic organisms within the same culturing pond environment. It is relatively safe to eat aquatic products based on the exposure risk index far below threshold values in this study. Therefore, it will be prudent to undertake regular monitoring of TPH to ensure effective ecosystem functioning as well as seafood safety in Zhejiang southern ocean.

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Section: Single Pollution Index (Pi) and Nemerow Pollution Index (Npi)mentioning

confidence: 99%

Pollution Level and Health Risk Assessment for the Total Petroleum Hydrocarbon in the Marine Environment, and Aquatic Products From the Southern Sea Area of Zhejiang Province, China

Zhou

et al. 2021

Preprint

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“…Tidal flat reclamation is common practice in the coastal areas of eastern China, and it plays an important role in reducing the pressures caused by population growth and urbanization [8,12], while also promoting economic development. However, tidal flat reclamation has also changed the physical and chemical properties of coastal soils [13,14], soil aggregate formation [15] (Kong et al, 2009), heavy metal accumulation [16,17], and alteration of the carbon sequestration capacity of the soil [18][19][20][21]. To date, there have been relatively few studies on the physical and chemical properties of soil and their influence on the organic carbon (OC) characteristics.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting Soil Organic Carbon Content between Natural and Reclaimed Sites in Rudong Coast, Jiangsu Province, China

Yang

Zhou

Shu

2021

JMSE

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The physical and chemical properties of coastal soils in China have changed due to the development of reclaimed stretches of coastline, which has a significant impact on the dynamics of organic carbon (OC) in the soils. We evaluated changes in the physical and chemical properties of soils in both a natural area and a reclaimed area along the coast of Rudong County, China, as well as the effects that these changes had on the OC content of the soils. A partial least squares regression (PLSR) model was used to determine which factors are most important for driving changes in soil OC at four sites from each area. According to dominant vegetation types, there were significant differences in soil physical and chemical properties and OC content between the reclaimed area and natural coastal area. The mean grain size and pH increased gradually with depth, and values were highest in reclaimed areas. Mean total N (TN), P, and S, salinity, water content, and soil OC were highest in natural areas and decreased with depth. The PLSR model determined that TN, silt content, and sand content were the most important factors affecting soil OC in the reclaimed area, whereas TN, clay content, and water content were important factors affecting soil OC dynamics in the natural coastal areas. This study provides important reference data for correctly assessing the role and status of coastal areas in the global carbon cycle.

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“…Over the past 10 years, the pollution of the marine environment of China has become increasingly severe, particularly for heavy metal pollution (Wang et al, 2013;Zhang et al, 2013;Bi et al, 2017;Xiao et al, 2017;Cao et al, 2020). More than 20 large rivers and irrigation canals along the coast of mid-eastern China bring terrestrial materials, including heavy metals, into the tidal flats and seas (Cao et al, 2020). In addition, with the rapid development of the coastal economy in Mid-eastern province Jiangsu, the number of industrial enterprises continues to increase.…”

Section: Introductionmentioning

confidence: 99%

“…Wastewater containing heavy metals is discharged into rivers and canals and finally into the sea or accumulated in the surface sediments of tidal flats. Therefore, the tidal flats of this area are reportedly one of the most polluted regions along the coast of China (Cao et al, 2020). Marine clams are filter-feeding organisms, and their living habits and physiological characteristics indicate they are more inclined to accumulate heavy metals from their living environment (Kato et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Multi-Year Survey and Bayesian Modeling Approach for Characterizing Arsenic Pollution in Marine Clams Cultivated Along the Tidal Flats of Mid-Eastern China

Wang

Ying

Chen

et al. 2021

Front. Environ. Sci.

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Marine clam is one of the main sources of arsenic (As), and the tidal flats of Jiangsu Province are considered major culturing areas for clams in mid-eastern China. In view of increasingly severe pollution in this region, concerns have been raised by the consumers with the safety of clams they purchased or may purchase. To address these concerns, we conducted a multi-year survey to determine the levels of As and As species in five major clam species cultivated in eight production areas of this region. Based on the above analysis data, Bayesian statistics used a Markov Chain Monte Carlo approach was applied to predict the toxic As residue distributions in clams produced in this region and their health risks to Chinese adults. It was found that the bioaccumulation ability of total As (tAs) and inorganic As (iAs) was species-specific, while Mactra veneriformis (MV) had the strongest accumulation capacity for toxic iAs (0.22–2.85 mg/kg dw). Up to 6.7% of the tested MV samples exceeding the iAs limit of China Food and Drug Administration. The content of iAs was also found to be related significantly to the harvest seasons, with clam in the spawning period (June) having the lowest iAs concentrations. The non-carcinogenic and carcinogenic health risk from dietary exposure to iAs associated with MV consumption was rather high, which suggested that specific attention should be paid to the safety of clam consumption in this region.

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Heavy metal pollution and the risk from tidal flat reclamation in coastal areas of Jiangsu, China

Cited by 39 publications

References 59 publications

Pollution Level and Health Risk Assessment for the Total Petroleum Hydrocarbon in the Marine Environment, and Aquatic Products From the Southern Sea Area of Zhejiang Province, China

Pollution Level and Health Risk Assessment for the Total Petroleum Hydrocarbon in the Marine Environment, and Aquatic Products From the Southern Sea Area of Zhejiang Province, China

Factors Affecting Soil Organic Carbon Content between Natural and Reclaimed Sites in Rudong Coast, Jiangsu Province, China

Multi-Year Survey and Bayesian Modeling Approach for Characterizing Arsenic Pollution in Marine Clams Cultivated Along the Tidal Flats of Mid-Eastern China

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