Occurrence, concentration and distribution of 50 organic contaminants in water and bottom sediment from urban streams affected by stormwater discharges DOI Creative Commons
Suna Ekin Kali, Heléne Österlund, Maria Viklander

и другие.

Water Research, Год журнала: 2025, Номер 283, С. 123847 - 123847

Опубликована: Май 16, 2025

Stormwater runoff transports organic contaminants from urban areas to receiving water bodies, yet its contribution these pollutants in the aquatic environment is still poorly understood. Additionally, behave differently waters, with some binding particles and accumulating sediments while others stay dissolved water. This study was carried out three Swedish streams stormwater discharges through separate sewer systems, under dry wet weather conditions. Stream bottom sediment samples were collected along an urbanization gradient, rural upstream downstream sections, analyzed for 50 stormwater-related assess impact of on contaminant levels. Polycyclic aromatic hydrocarbons (PAHs) phthalates more prevalent samples, concentrations increasing indicating contributions runoff. In contrast, organotin compounds phenols showed no clear pattern transport phase. Per polyfluoroalkyl substances (PFAS) behaved other groups by exhibiting a both phases. Though passing relatively small settings, findings clearly demonstrate that can waters. Of contaminants, exceeded toxicity-based limits (DW), seven (WW), twenty sediments. phase, DW WW conditions, highest exceedance Perfluorooctanesulfonic acid (PFOS), Tributyltin (TBT), 4-nonylphenol (4-NP). 4‑tert-octylphenol (4-t-OP), di-2-ethylhexyl phthalate (DEHP) limits. Compared hydrophilic (e.g., PFAS), hydrophobic particularly those (e.g. phenols, phthalates), posed greater risk levels reaching up 105 times thresholds. These raise concerns about long-term environments highlight need mitigation strategies, including regulatory or operational restrictions sources implementation treatment facilities.

Язык: Английский

Addressing the challenges of combined sewer overflows DOI Creative Commons
William Bernard Perry, Reza Ahmadian, Max Munday

и другие.

Environmental Pollution, Год журнала: 2023, Номер 343, С. 123225 - 123225

Опубликована: Дек. 25, 2023

Europe's ageing wastewater system often combines domestic sewage with surface runoff and industrial wastewaters. To reduce the associated risk of overloading treatment works during storms, to prevent backing-up into properties, Combined Sewer Overflows (CSOs) are designed networks release excess discharge rivers or coastal waters without treatment. In view growing regulatory scrutiny increasing public concern about their excessive frequencies potential impacts on environments people, there is a need better understand these allow prioritisation cost-effective solutions.We review: i) chemical, physical biological composition CSOs discharges; ii) spatio-temporal variations in quantity, quality load overflows spilling receiving waters; iii) ecosystems economies. Despite investigations illustrating frequency CSOs, data spill loading pollutants too few reach representative conclusions, particularly for emerging contaminants. Studies appraising also scarce, especially contexts where multiple stressors affecting waters. Given costs addressing problems, but likely long-term gains (e.g. economic stimulation as well improvements biodiversity, ecosystem services, health wellbeing), we highlight here bolster evidence gaps. We advocate no-regrets options alleviate CSO problems taking consideration costs, carbon neutrality, benefit community well-being. Besides pragmatic, risk-based investment by utilities local authorities modernise systems, include more systemic thinking, linking policy makers, consumers, regulators, shift from issues integrated catchment solutions aim reducing contributions drainage water consumption; broader societal responsibilities example through improved regulation, behavioural changes consumption disposal waste networks, greater cost-sharing use.

Язык: Английский

Процитировано

44
Are we underestimating stormwater? Stormwater as a significant source of microplastics in surface waters DOI

Mozim Shafi,

Ayan Lodh,

Medha Khajuria

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 465, С. 133445 - 133445

Опубликована: Янв. 6, 2024

Язык: Английский

Процитировано

36
Review of trace organic chemicals in urban stormwater: Concentrations, distributions, risks, and drivers DOI Creative Commons
Kefeng Zhang, Zhaozhi Zheng, Lena Mutzner

и другие.

Water Research, Год журнала: 2024, Номер 258, С. 121782 - 121782

Опубликована: Май 16, 2024

Urban stormwater, increasingly seen as a potential water resource for cities and towns, contains various trace organic chemicals (TrOCs). This study, conducted through comprehensive literature review of 116 publications, provides detailed report on the occurrence, concentration distribution, health, ecological risks TrOCs, well impact land use rainfall characteristics their concentrations. The uncovers total 629 TrOCs detected at least once in urban including 228 pesticides, 132 pharmaceutical personal care products (PPCPs), 29 polycyclic aromatic hydrocarbons (PAHs), 30 per- polyfluorinated substances (PFAS), 28 flame retardants, 24 plasticizers, 22 polychlorinated biphenyls (PCBs), nine corrosion inhibitors, 127 other industrial chemicals/intermediates/solvents. Concentration distributions were explored, with best fit being log-normal distribution. Risk assessment highlighted 82 high risk quotients (ERQ > 1.0) three health (HQ 1.0). Notably, 14 (including six PAHs, five flame-retardants, one plasticizer) out 68 analyzed significantly influenced by land-use type. Relatively weak relationships observed between pollutant concentrations, warranting further investigation. study essential information about occurrence offering valuable insights managing these emerging concern.

Язык: Английский

Процитировано

12
Exploring the degradation of ofloxacin in sewer overflows by Fe(Ⅵ)/PMS, Fe(Ⅵ)/PDS, and Fe(Ⅵ)/SPC: Overlooked synergistic effect of oxidation and in-situ coagulation DOI
Qian Guo, Zuxin Xu, Wenhai Chu

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 488, С. 137333 - 137333

Опубликована: Янв. 22, 2025

Язык: Английский

Процитировано

1
Source-specific dynamics of organic micropollutants in combined sewer overflows DOI Creative Commons
Viviane Furrer, Andreas Froemelt, Heinz Singer

и другие.

Water Research, Год журнала: 2025, Номер 279, С. 123416 - 123416

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Infancy of peracetic acid activation by iron, a new Fenton-based process: A review DOI Creative Commons
Iván Sciscenko, Davide Vione, Marco Minella

и другие.

Heliyon, Год журнала: 2024, Номер 10(5), С. e27036 - e27036

Опубликована: Фев. 24, 2024

The exacerbated global water scarcity and stricter directives are leading to an increment in the recycled use, requiring development of new cost-effective advanced treatments provide safe population. In this sense, peracetic acid (PAA, CH

Язык: Английский

Процитировано

7
Comprehensive approaches to managing emerging contaminants in wastewater: identification, sources, monitoring and remediation DOI

Deepjyoti Boro,

Manisha Chirania,

Ashwni Verma

и другие.

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(4)

Опубликована: Март 21, 2025

Язык: Английский

Процитировано

1
Critical field evaluations of biochar-amended stormwater biofilters for PFAS and other organic micropollutant removals DOI Creative Commons
Ali Beryani, Kelsey Flanagan, Shujie You

и другие.

Water Research, Год журнала: 2025, Номер unknown, С. 123547 - 123547

Опубликована: Март 1, 2025

Biochar is often promoted as an ideal amendment for stormwater biofilters; however, its effectiveness has rarely been tested under field conditions. This study evaluates the impact of biochar addition on removal organic micropollutants (OMPs) in field-scale biofilters operating real-world conditions first time. The research comprised four vegetated biofilter facilities (3 - 5 years old), two without and with 2.1 wt. % (10 vol. %) amendment. Stormwater filter material samples from various locations after operation were analyzed a wide range common emerging OMPs found urban runoff. Unlike hydrophobic (hydrocarbons, polychlorinated biphenyls, di(2-ethylhexyl) phthalate), investigated demonstrated low, or inconsistent, hydrophilic slow-adsorbing like bisphenol A, monobutyltin, per-fluoroalkyl substances (PFASs). Although physiochemical properties well-adapted to pollutant removal, did not significantly improve OMP when compared status quo. can be attributed several suboptimal design interfering biochar's sorption capacity, namely, large particle size (D50 ∼4 mm) low quantity biochar, high levels competing agents (i.e., dissolved oxygen carbon (DOC) cations), co-contaminants stormwater, limited contact time, pore blockage (e.g., by DOC molecules sediments/minerals), diminished surface porosity, sometimes increased uncertainty due influent concentrations. Our findings complexities associated applying treatment. Further biochar-specific designs needed optimize potential this

Язык: Английский

Процитировано

1
Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances DOI Creative Commons
Lena Mutzner, Kefeng Zhang, Richard G. Luthy

и другие.

Environmental Science Water Research & Technology, Год журнала: 2023, Номер 9(12), С. 3094 - 3102

Опубликована: Янв. 1, 2023

Urban stormwater is a source of persistent, mobile and toxic substances, however the risk for water resources unknown.

Язык: Английский

Процитировано

15
Policies on combined sewer overflows pollution control: A global perspective to inspire China and less developed countries DOI
Tao Wang, Yunhui Zhang,

Huaizheng Li

и другие.

Critical Reviews in Environmental Science and Technology, Год журнала: 2023, Номер 54(14), С. 1050 - 1069

Опубликована: Дек. 6, 2023

Combined sewer overflows (CSOs) are of major concern for urban water environment restoration that draws worldwide attention. The enaction related policies, regulations, guidelines and criteria forms a crucial foundation CSO control management. Some developed countries, such as the US European leading management have relatively completed legislative framework. Despite great efforts made worldwide, existing combined systems severe illicit sanitary connections to storm sewers still result in wet-weather flows (UWWF) pollution which is similar or even more detrimental than CSOs, deteriorating receiving bodies, particularly developing countries. This article aims review history evolution CSO-related permits, criteria, technical guidances measures typical countries guide UWWF latecomers. It was found has formed complete system from national policies states' practices proceeded green development stage. transitioned targets toward meeting quality standards. In comparison, Japan South Korea attach importance end-of-pipe treatment On this basis, recommendations were proposed long-term China. also expected enactment regulations less facing serious pollution.

Язык: Английский

Процитировано

15