Occurrence and risk assessment of multiclass endocrine disrupting compounds in an urban tropical river and a proposed risk management and monitoring framework

Wee, Sze Yee; Aris, Ahmad Zaharin; Yusoff, Fatimah Md.; Praveena, Sarva Man­gala

doi:10.1016/j.scitotenv.2019.03.243

Cited by 100 publications

(59 citation statements)

References 36 publications

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“…Nonetheless, BPA was reported in other rivers in Malaysia; Santhi et al 27 detected BPA in 93% of samples taken from Langat River with limits ranging between 1.3 and 215 ng L −1 in surface water and between 3.5 and 59.8 ng L −1 in tap water. Similarly, Wee et al 16 also detected BPA in all collected samples in Langat River with a registered maximum concentration of (8.24 ng L −1 ). Duong et al 28 also reported levels of BPA (7.4–10.8 ng L −1 ) at Salut River in Sabah, Malaysia.…”

Section: Resultsmentioning

confidence: 57%

“…In 2012, the Department of Environment (DOE) in Malaysia had pinpointed a total 1,662,329 point sources that contribute to water pollution all over Malaysia, comprised of 9883 STPs, 4595 manufacturing industries, 754 animal farmhouses, 865 wet markets, 508 agro-centred practices, and 192,710 food service enterprises 29 . Wee et al 16 stated that urban and Industrial effluents from STPs are considered the main sources of BPA in drinking water supplies in Malaysia. However, BPA concentrations can be considered low in comparison with other results reported in the region including in Malaysia.…”

Section: Resultsmentioning

confidence: 99%

“…However, BPA concentrations can be considered low in comparison with other results reported in the region including in Malaysia. This can be attributed to absence of major industries along Bentong river reach, and potentially to the strict regulations on BPA’s use which prohibited excessive application of BPA 16 . Similar low levels of BPA were also reported in Malaysian rivers such as Langat River 16 , 27 as well as Salut River 28 .…”

Section: Resultsmentioning

confidence: 99%

“…Most of these rivers receive industrial and urban wastewater or treated effluent mainly processed by traditional water treatment practices 14 . However, several reports have stated that numerous organic pollutants such as BPA and pharmaceuticals aren’t removed completely throughout the treatment process 15 , 16 . Furthermore, rivers in Malaysia are extremely turbid; Deforestation and changing land uses, particularly the conversion of forests into oil palm plantations, have adversely impacted the water quality in rivers and the high volume of total suspended solids (TSS) have caused extra turbidity related issues in rivers.…”

Section: Introductionmentioning

confidence: 99%

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Occurrence, environmental implications and risk assessment of Bisphenol A in association with colloidal particles in an urban tropical river in Malaysia

Shehab

Jamil

Aris

2020

Sci Rep

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Phase distribution of emerging organic contaminants is highly influential in their presence, fate and transport in surface water. Therefore, it is crucial to determine their state, partitioning behaviour and tendencies in water environments. In this study, Bisphenol A was investigated in both colloidal and soluble phases in water. BPA concentrations ranged between 1.13 and 5.52 ng L−1 in the soluble phase and n.d-2.06 ng L−1 in the colloidal phase, respectively. BPA was dominant in the soluble phase, however, the colloidal contribution ranged between 0 and 24% which implied that colloids can play a significant role in controlling BPA’s transportation in water. Urban and industrial areas were the main sources of BPA while forest areas displayed lower levels outside the populated domains. pH levels were between 6.3 and 7.4 which might have affected BPA’s solubility in water to some extent. The particle size distribution showed that the majority of the particles in river samples were smaller than 1.8 µm in diameter with a small presence of nanoparticles. Zeta potential varied between − 25 and − 18 mV, and these negative values suggested instability of particles. Furthermore, BPA was positively correlated with BOD, COD and NH3–N which might indicate that these organic compounds were released concurrently with BPA. RQ assessment showed low levels of risk towards algae and fish in the study area.

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Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Occurrence, environmental implications and risk assessment of Bisphenol A in association with colloidal particles in an urban tropical river in Malaysia

Shehab

Jamil

Aris

2020

Sci Rep

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“…Composite of TiO2 and SnO2 QDs may prove to be beneficial for efficient decomposition of Endocrine Disrupting Chemicals (EDCs). Exposure to EDCs in nature is a basic worry with unclear long-term negative impacts [12][13][14][15][16][17][18][19][20][21]. EDCs are discharged into nature by people, animals and industry; and therefore, enters in bodies through soil, surface water and ground water.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Visible Light Photocatalytic Activity of TiO2 Nanospheres/SnO2 Quantum Dots Composite for Degradation of 4-Nitrophenol

Bhatt¹,

Benjamin²,

Ameta³

et al. 2019

JNST

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A composite of SnO2 quantum dots (QDs) decorated on TiO2 nanospheres was prepared and then used as photocatalyst in photodegradation of 4-nitrophenol. The structure of TiO2/SnO2 QD composites revealed that the SnO2 quantum dots are uniformly dispersed on the surface of TiO2 nanospheres. The effect of various parameters such as pH, concentration of dye, amount of semiconductor and light intensity was observed. The photocatalytic behavior of as-prepared samples shows better activity than pure TiO2 nanospheres. This study presents a choice for potential applications of quantum dots in water pollution treatment.

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Occurrence and Fate of Bisphenol A and its Congeners in Two Wastewater Treatment Plants and Receiving Surface Waters in Romania

Chiriac

Păun

Pirvu

et al. 2020

Enviro Toxic and Chemistry

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The present study investigated the distribution and environmental fate of Bisphenol A (BPA), the 4‐hydroxyacetophenone (4‐HAP) metabolite, and 5 other bisphenol congeners in 2 municipal wastewater treatment plants (WWTPs) and their receiving rivers in Romania. Accordingly, a new, highly sensitive and accurate solid‐phase extraction–liquid chromatography–electrospray ionization–tandem mass spectrometry method was developed and validated. This technique generated low limit of quantitation values: below 2.3 ng/L for surface water and less than 2.4 and 2.7 ng/L for WWTP effluent and influent water. The sum of detected analytes in wastewater was between 1337 and 16 118 ng/L for influent samples and between 15 and 96 ng/L for effluent samples. In surface water, the total of all compounds was somewhere between 34 and 240 ng/L. The highest concentration observed was for BPA in all 3 types of analyzed water (up to 9140 ng/L for influent, as high as 75 ng/L for effluent, and a maximum of 135 ng/L in surface waters). All analyzed samples were free of bisphenols B, C, and F. For all analytes detected in surface water, the concentration values were higher than those determined in the effluent samples, which may be caused by intrinsic contamination of the 2 rivers (Danube and Jiu Rivers). Values of environmental risk coefficients, calculated for both effluents and surface waters, indicated a low ecological risk or no ecological risk for 3 types of organisms (algae, daphnia, and fish). Human risk assessment calculation suggests no risk to human health as a result of the presence of BPA in either of the 2 rivers. Environ Toxicol Chem 2021;40:435–446. © 2020 SETAC

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Occurrence and risk assessment of multiclass endocrine disrupting compounds in an urban tropical river and a proposed risk management and monitoring framework

Cited by 100 publications

References 36 publications

Occurrence, environmental implications and risk assessment of Bisphenol A in association with colloidal particles in an urban tropical river in Malaysia

Occurrence, environmental implications and risk assessment of Bisphenol A in association with colloidal particles in an urban tropical river in Malaysia

Enhanced Visible Light Photocatalytic Activity of TiO2 Nanospheres/SnO2 Quantum Dots Composite for Degradation of 4-Nitrophenol

Occurrence and Fate of Bisphenol A and its Congeners in Two Wastewater Treatment Plants and Receiving Surface Waters in Romania

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