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Altitudinal variation and sources of organophosphate esters in the soils of Lamakeka Mountain, China: implications for transport and fate
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DOI：10.1007/s11368-026-04443-1.png)
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Abstract
En 中文
To investigate the altitudinal distribution and sources of organophosphate esters (OPEs) in soils of Lamakeka Mountain, and to explore their environmental transport and fate. Surface soil samples were collected along an altitudinal gradient (2653–3861 m) in spring and autumn. OPEs concentrations were determined using gas chromatography-mass spectrometry (GC-MS). At the same altitudes, the concentration of $$\:{{\Sigma\:}}_{7}$$ OPEs in spring (16.19–47.30 ng·g⁻¹, average: 27.80 ± 12.59 ng·g⁻¹) was 1.43–3.22 times that in autumn (7.20–18.03 ng·g⁻¹, 10.17 ± 4.30 ng·g⁻¹). Notably, the concentrations of tris-(2-chloroethyl) phosphate (TCEP), tri-(chloropropyl) phosphate (TCPP), tris-(2-butoxyethyl) phosphate (TBEP), triphenyl phosphate (TPhP), and tris-(2-ethylhexyl) phosphate (TEHP) exhibited a fluctuating upward trend with increasing altitude. The distribution was influenced by alpine condensation, soil properties, and degradation processes, etc. This study provides crucial reference OPEs data for high-altitude regions and advances understanding of the global transport and fate of semi-volatile organic pollutants.
Keywords:
Organophosphate esters
Mountain
Altitudinal distribution
Influencing factors
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3
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548
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1.1W
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