98%
921
2 minutes
20
Phthalic acid esters (PAEs), a class of typical endocrine disruptors, have received considerable attention due to their widespread applications and adverse effects on biological health. In this study, 30 water samples, along the mainstream of the Yangtze River (YR), were collected from Chongqing (upper stream) to Shanghai (estuary) from May to June in 2019. The total concentrations of 16 targeted PAEs ranged from 0.437 to 20.5 μg/L, with an average of 1.93 μg/L, where dibutyl phthalate (DBP, 0.222-20.2 μg/L), bis (2-ethylhexyl) phthalate (DEHP, 0.254-7.03 μg/L), and diisobutyl phthalate (DIBP, 0.0645-0.621 μg/L) were the most abundant PAEs. According to the pollution level in the YR to assess the ecological risk posed by PAEs, the results showed medium risk level of PAEs in the YR, among which DBP and DEHP posed a high ecological risk to aquatic organisms. The optimal solution for DBP and DEHP is found in ten fitting curves. The PNEC of them is 2.50 μg/L and 0.34 μg/L, respectively.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s11356-023-27203-x | DOI Listing |
Cancer Causes Control
September 2025
College of Public Health, Iowa Cancer Registry, Epidemiology Department, University of Iowa, Iowa City, IA, USA.
Purpose: Human papillomavirus (HPV) causes oral and anogenital cancers, the incidence of which is increasing. Late-stage diagnosis is associated with increased mortality. Neighborhood-level characteristics and distance to place of diagnosis may impact timely diagnosis.
View Article and Find Full Text PDFWellcome Open Res
August 2025
Paul G. Allen School for Global Health, Washington State University, Pullman, Washington, USA.
Arenaviruses and Hantaviruses, primarily hosted by rodents and shrews, represent significant public health threats due to their potential for zoonotic spillover into human populations. Despite their global distribution, the full impact of these viruses on human health remains poorly understood, particularly in regions like Africa, where data is sparse. Both virus families continue to emerge, with pathogen evolution and spillover driven by anthropogenic factors such as land use change, climate change, and biodiversity loss.
View Article and Find Full Text PDFVet World
July 2025
Department of Clinical Laboratory Science, Chair of Medical and Molecular Genetics Research, College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia.
Background And Aim: Bluetongue virus (BTV), an arbovirus of major economic importance, affects domestic and wild ruminants globally and is primarily transmitted by Culicoides biting midges. The virus is endemic in many regions, yet limited data are available for Saudi Arabia. This study aimed to determine the seroprevalence of BTV antibodies in cattle, goats, sheep, and camels across two ecologically distinct regions in central Saudi Arabia and to assess species- and region-specific risk profiles.
View Article and Find Full Text PDFEnviron Sci Technol
September 2025
Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China.
Ambroxol (AMB), a common expectorant, enters aquatic environments via wastewater, yet its ecological risks remain unclear. Under UV exposure (15 mJ·cm, λ = 185-400 nm), AMB undergoes photolysis, among the photoproducts, 4-((2-amino-3-bromobenzyl)amino) cyclohexanol (P1) and 2-amino-3,5-dibromobenzaldehyde (DBA) are major species, comprising over 50% of the total photoproduct peak area at the photolytic plateau. Acute toxicity tests with AMB, P1, and DBA in four aquatic species at different trophic levels revealed: the highest sensitivity in (LC = 0.
View Article and Find Full Text PDFEnviron Pollut
September 2025
State Key Laboratory of Loess Science, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China. Electronic address:
This study investigates the vertical profiles, pollution status and ecological risks of heavy metal(loid)s contamination in three sediment cores (N21, N03, and 38002) from the North Yellow Sea (NYS), with a focus on the influence of grain size effects on sedimentary profiles. The results revealed distinct vertical distribution patterns of heavy metal(loid)s content among the three sediment cores. Enrichment Factor (EF) and Geo-accumulation Index (I) assessments identified Sb as significantly enriched, indicating anthropogenic influence, whereas Co, Cr, Cu, Ni, and Zn primarily originated from natural weathering.
View Article and Find Full Text PDF