Decade-scale contrasts in sediment metal(loid)s across Qinghai-Xizang Plateau lakes.

Jun Chen, Ziyao Zhou, Libo Chen, Chengshuo Hua, Xuebin Lu

Abstract read

In one paragraph

Article in Environmental science and ecotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Jun ChenSchool of Ecology and Environment, Key Laboratory of Biodiversity and Environment on the Qinghai-Tibet Plateau, Ministry of Education, Xizang University, Lhasa, 850000, China.

Ziyao ZhouSchool of Ecology and Environment, Key Laboratory of Biodiversity and Environment on the Qinghai-Tibet Plateau, Ministry of Education, Xizang University, Lhasa, 850000, China.

Libo ChenXianning Aerial Forest Fire Protection Station, Xianning, 437000, China.

Chengshuo HuaSchool of Ecology and Environment, Key Laboratory of Biodiversity and Environment on the Qinghai-Tibet Plateau, Ministry of Education, Xizang University, Lhasa, 850000, China.

Xuebin LuSchool of Ecology and Environment, Key Laboratory of Biodiversity and Environment on the Qinghai-Tibet Plateau, Ministry of Education, Xizang University, Lhasa, 850000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lake sediments on the Qinghai-Xizang Plateau capture shifting metal(loid) dynamics within an alpine ecosystem uniquely vulnerable to climate change and anthropogenic pressures. However, plateau-wide ecological risk assessments incorporating quantitative source apportionment remain scarce, leaving a critical gap that hinders targeted ecosystem conservation and precise policy interventions. Here we present a plateau-scale analysis of sediment geochemistry across 110 lakes over two decadal periods (2014 and 2024), utilizing a hybrid positive matrix factorization-random forest framework. Arsenic serves as the primary diagnostic sentinel, persistently exceeding baseline thresholds across both decades. Although mean chromium concentrations declined from 85.7 to 68.0 mg kg

Indexed as

Hybrid PMF–Random forest (PMF–RF)Lake-sediment heavy metal(loid)sPollution assessmentQinghai–Xizang Plateau lakesSource apportionment

Identifiers

PMID42375645

DOI10.1016/j.ese.2026.100723

PMCPMC13311183

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.