Dynamics of Cadmium Pollution Risk in Agricultural Land Soil of Tropical Islands in China from 2000 to 2024: A Case Study of Hainan Island DOI Creative Commons
Erping Shang,

Long An,

Jin Yang

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(7), P. 3817 - 3817

Published: March 31, 2025

The issue of cadmium (Cd) contamination in agricultural soils has garnered significant attention due to its implications for food safety and environmental health. However, research on spatial temporal distribution tropical zones with high intensity cropping remains limited. This study conducts a meta-analysis 38 studies published between 2000 2024 comprehensively assess Cd pollution Hainan Island, China, region three cycles per year. By synthesizing 165 records from 4110 sampling sites, the analysis reveals that mean concentration stands at 0.12 mg/kg, peak values reaching 3.11 mg/kg. Approximately 80.44% sites fall into categories unpolluted or moderately based geo-accumulation index, while 2.17% exhibited heavy extreme accumulation, 2.13% posed an ecological risk (level IV). Spatially, concentrations were lower central areas, such as Baisha County, but higher northwest southeast, notably Haikou City Sanya south. Over time, intensified, rising 0.09 mg/kg (2005–2014) 0.16 (2017–2023), exceedance rates around 1% 7.78% 20.93%, peaking 2017. increasing trend accumulation is closely related human activities, agricultural, industrial, transportation-related activities playing increasingly role accumulation. Pesticide use, phosphate fertilizer application, industrial emissions have been identified major contributing factors. These findings highlight need targeted mitigation strategies control sources ensure long-term sustainability production Island.

Language: Английский

Dynamics of Cadmium Pollution Risk in Agricultural Land Soil of Tropical Islands in China from 2000 to 2024: A Case Study of Hainan Island DOI Creative Commons
Erping Shang,

Long An,

Jin Yang

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(7), P. 3817 - 3817

Published: March 31, 2025

The issue of cadmium (Cd) contamination in agricultural soils has garnered significant attention due to its implications for food safety and environmental health. However, research on spatial temporal distribution tropical zones with high intensity cropping remains limited. This study conducts a meta-analysis 38 studies published between 2000 2024 comprehensively assess Cd pollution Hainan Island, China, region three cycles per year. By synthesizing 165 records from 4110 sampling sites, the analysis reveals that mean concentration stands at 0.12 mg/kg, peak values reaching 3.11 mg/kg. Approximately 80.44% sites fall into categories unpolluted or moderately based geo-accumulation index, while 2.17% exhibited heavy extreme accumulation, 2.13% posed an ecological risk (level IV). Spatially, concentrations were lower central areas, such as Baisha County, but higher northwest southeast, notably Haikou City Sanya south. Over time, intensified, rising 0.09 mg/kg (2005–2014) 0.16 (2017–2023), exceedance rates around 1% 7.78% 20.93%, peaking 2017. increasing trend accumulation is closely related human activities, agricultural, industrial, transportation-related activities playing increasingly role accumulation. Pesticide use, phosphate fertilizer application, industrial emissions have been identified major contributing factors. These findings highlight need targeted mitigation strategies control sources ensure long-term sustainability production Island.

Language: Английский

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