ReviewPeerJ2025
Occurrence, composition, sources, and ecological-health risk assessment of polycyclic aromatic hydrocarbons in Chinese water bodies: a review.
Review in PeerJ, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polycyclic aromatic hydrocarbons (PAHs) pose significant threats to aquatic ecosystems globally. This study conducted a comprehensive literature search (2015-2025) across Web of Science, ScienceDirect, and China National Knowledge Infrastructure (CNKI) databases to evaluate PAH contamination in diverse water bodies in China. Through an analysis of data from 69 distinct study areas, we synthesized concentration distributions, compositional profiles, pollution sources, and associated ecological and health risks. The results revealed significant spatiotemporal variations in PAH contamination across Chinese water bodies, with mean concentrations ranging from 17.4 to 3,856.68 ng/L, and an arithmetic mean of 498.3 ng/L. Northern industrial regions, eastern estuarine and coastal areas exhibited the highest pollution levels, while western remote areas remained less contaminated. Rivers showed the highest mean PAH concentrations, followed by lakes/reservoirs, coastal waters, and estuaries. Low-molecular-weight (LMW) PAHs dominated, accounting for 74.5-82.2% of total PAHs, though high-molecular-weight (HMW) compounds were enriched in industrial zones and deltas. Source apportionment indicated mixed contributions from fossil fuel combustion, petroleum spills, and traffic emissions, with distinct seasonal patterns: coal heating dominated in winter, while runoff inputs were major contributors in summer. Ecological risk assessment indicated high risk was prevalent, with risk quotient (RQ) values greatly exceeding 1 in severely polluted areas such as river basins and estuaries. Health risk evaluation showed that incremental lifetime cancer risk (ILCR) values in certain areas reach ed 4.6 × 10
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