Occurrence, sources, and spatial variation of POPs in a mountainous tropical drinking water supply basin by passive sampling

Ramírez, Daniel Gil; Valderrama, Jhon Fredy Narváez; Tobón, Carlos Alberto Palacio; García, Juan José Argudo; Echeverri, Juan David; Sobotka, Jaromír; Vrana, Branislav

doi:10.1016/j.envpol.2022.120904

Cited by 10 publications

(6 citation statements)

References 32 publications

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“…Comparisons were also possible with recent passive sampling in Wivenhoe Lake (L2), Lake Geneva (L5), , Lake Redon (L8), and the Piedras River (in the same region as the Peñol-Guatapé Reservoir; L1) . Σ 7 PCB concentrations were very similar, e.g., Lake Geneva, Lake Redon.…”

Section: Resultsmentioning

confidence: 90%

“…Comparisons were also possible with recent passive sampling in Wivenhoe Lake (L2), 48 Lake Geneva (L5), 49,50 Lake Redon (L8), 51 and the Piedras River (in the same region as the Penõl-GuatapéReservoir; L1). 52 Σ 7 PCB concentrations were very similar, e.g., Lake Geneva, Lake Redon. However, there were major differences in concentrations of some OCPs between this study and the other reports, e.g., ΣHCH, HCB, and Σendosulfan in Wivenhoe Lake, as well as ΣDDT and HCB in the Piedras River.…”

Section: ■ Materials and Methodsmentioning

confidence: 93%

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Passive-Sampler-Derived PCB and OCP Concentrations in the Waters of the World─First Results from the AQUA-GAPS/MONET Network

Lohmann

Vrana

Muir

et al. 2023

Environ. Sci. Technol.

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Persistent organic pollutants (POPs) are recognized as pollutants of global concern, but so far, information on the trends of legacy POPs in the waters of the world has been missing due to logistical, analytical, and financial reasons. Passive samplers have emerged as an attractive alternative to active water sampling methods as they accumulate POPs, represent time-weighted average concentrations, and can easily be shipped and deployed. As part of the AQUA-GAPS/MONET, passive samplers were deployed at 40 globally distributed sites between 2016 and 2020, for a total of 21 freshwater and 40 marine deployments. Results from silicone passive samplers showed α-hexachlorocyclohexane (HCH) and γ-HCH displaying the greatest concentrations in the northern latitudes/Arctic Ocean, in stark contrast to the more persistent penta (PeCB)-and hexachlorobenzene (HCB), which approached equilibrium across sampling sites. Geospatial patterns of polychlorinated biphenyl (PCB) aqueous concentrations closely matched original estimates of production and use, implying limited global transport. Positive correlations between log-transformed concentrations of Σ 7 PCB, ΣDDTs, Σendosulfan, and Σchlordane, but not ΣHCH, and the log of population density (p < 0.05) within 5 and 10 km of the sampling sites also supported limited transport from used sites. These results help to understand the extent of global distribution, and eventually time-trends, of organic pollutants in aquatic systems, such as across freshwaters and oceans. Future deployments will aim to establish time-trends at selected sites while adding to the geographical coverage.

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Section: Resultsmentioning

confidence: 90%

Section: ■ Materials and Methodsmentioning

confidence: 93%

Passive-Sampler-Derived PCB and OCP Concentrations in the Waters of the World─First Results from the AQUA-GAPS/MONET Network

Lohmann

Vrana

Muir

et al. 2023

Environ. Sci. Technol.

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“…The analysis of PAH emission sources, particularly vehicular emissions, highlighted vehicular combustion as the predominant contributor to the levels of PAH congeners, as illustrated in Figure 4. The pollution emission sources in the MAMC were identified through diagnostic ratios between the PAH congeners [20,22]. This analysis, depicted in Figure 4, underscores vehicular emissions, both diesel and petrol, as significant contributors to airborne PAHs.…”

Section: Analysis Of Airborne Pahs (Exposure Levels)mentioning

confidence: 95%

“…illustrated in Figure 4. The pollution emission sources in the MAMC were identified through diagnostic ratios between the PAH congeners [20,22]. This analysis, depicted in Figure 4, underscores vehicular emissions, both diesel and petrol, as significant contributors to airborne PAHs.…”

Section: Pah Congeners Ringsmentioning

confidence: 95%

Traffic and Industrial Contributions of Particle-Bound PAHs during an Air Pollution Event in the Metropolitan Area of Medellin-Colombia: Inhalation Intake Risk during Pregnancy

Narváez-Valderrama,

Alzate-B,

Correa-Gil

et al. 2024

Atmosphere

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Air pollution includes particle-bound polycyclic aromatic hydrocarbons (PAHs), which eventually reach the placenta, triggering adverse perinatal outcomes through long-term exposure. Lately, air pollution has increased over the Metropolitan Area of Medellin-Colombia (MAMC), but its effects on pregnancy are still unknown. In this research, a real-time analysis of total airborne PAHs was made using a photoelectric sensor for residential places influenced by the industrial and traffic sources affecting the southern and northern MAMC during the second peak of the bimodal tendency for PM2.5 emissions in this region. Additionally, individual PAHs were analyzed by GC/MS coupled with pressurized hot water extraction methodology. The data were applied using an inhalation intake model to assess pregnancy exposure. The average concentration of PAHs in the southern MAMC was three times higher than in the northern MAMC, where the missed abortion rate has been 1.4 times higher according to the database. Previous research indicates that PAHs act as endocrine-disrupting chemicals (EDCs) during pregnancy and that even heavy congeners could reside in umbilical cord blood. Finally, the annual series of missed abortion rates in the MAMC exhibited a significant correlation with the annual average levels of PM2.5, which were associated with PAHs through correlation analysis (r2 = 0.69, p < 0.01). While this significant correlation does not imply causality, our results suggest an important connection between both variables, opening a gap for a deeper understanding of how regions with high PAH convergence influence the missed abortion rates in MAMC.

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“…Freshwater ecosystems are the most vulnerable to contamination by these compounds (Ramírez et al 2023; Sultan et al 2023). In these environments, sh are the most affected organisms, as OCPs accumulate in the adipose tissue ( Bruzzoniti et al 2014), bioaccumulate through trophic levels, permeate the placenta, and contaminate the offspring (Guo et al 2008).…”

Section: )mentioning

confidence: 99%

Evaluation of organochlorine pesticides in samples of Astyanax Altiparanae Fish from an important reservoir in Brazil and Risk assessment

Stremel,

Silva,

Domingues

et al. 2023

Preprint

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The Alagados reservoir is located in one of the main grain-producing and exporting areas in Brazil. Additionally, it is situated beneath the Guarani Aquifer, one of the largest aquifers in the world, which is an important source of groundwater for several countries in South America. Residues of organochlorine pesticides (OCPs) were detected in roe, viscera, and muscle of Astyanax altiparanae from the Alagados reservoir (Paraná State, Brazil) by GC/ECD. The detected OCPs include Aldrin (17.1 to 50.6 µg/Kg), α-endosulfan (3.4 to 23.5 µg/Kg), p,p’-DDE (4.2 to 134.7 µg/Kg), Dieldrin (84.7 to 183.1 µg/Kg), β-endosulfan (6.0 to 51.6 µg/Kg), and p,p’-DDT (56.6 to 286.8 µg/Kg) in roe; Aldrin (19.8 to 93.3 µg/Kg), α-endosulfan (8.3 to 37 µg/Kg), p,p’-DDE (83.5 to 209.2 µg/Kg), Dieldrin (18.0 to 193.5 µg/Kg), β-endosulfan (21.0 to 95.4 µg/Kg), and p,p’-DDT (52.3 to 89.2 µg/Kg) in viscera; and Aldrin (8.28 to 26.16 µg/Kg), α-endosulfan (4.16 to 12.3 µg/Kg), p,p’-DDE (12.7 to 40.17 µg/Kg), Dieldrin (45.6 µg/Kg), β-endosulfan (8.58 to 58.54 µg/Kg), and p,p’-DDT (12.0 to 23.1 µg/Kg) in muscle. Principal component analysis showed a proportional relationship between the highest concentrations of OCPs and the width of the fish abdomen. The levels of OCPs detected in Astyanax altiparanae samples did not exceed the maximum residue limits imposed by the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO). However, risk quotient calculations indicated possible health risks associated with the consumption of these fish.

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Occurrence, sources, and spatial variation of POPs in a mountainous tropical drinking water supply basin by passive sampling

Cited by 10 publications

References 32 publications

Passive-Sampler-Derived PCB and OCP Concentrations in the Waters of the World─First Results from the AQUA-GAPS/MONET Network

Passive-Sampler-Derived PCB and OCP Concentrations in the Waters of the World─First Results from the AQUA-GAPS/MONET Network

Traffic and Industrial Contributions of Particle-Bound PAHs during an Air Pollution Event in the Metropolitan Area of Medellin-Colombia: Inhalation Intake Risk during Pregnancy

Evaluation of organochlorine pesticides in samples of Astyanax Altiparanae Fish from an important reservoir in Brazil and Risk assessment

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