Occurrence of THM and NDMA precursors in a watershed: Effect of seasons and anthropogenic pollution

Egemen Aydin; Fatma Busra Yaman; Esra Ates Genceli; Emel Topuz; Esra Erdim; Melike Gurel; Murat Ipek; Elif Pehlivanoglu-Mantas

doi:10.1016/j.jhazmat.2012.04.012

Occurrence of THM and NDMA precursors in a watershed: Effect of seasons and anthropogenic pollution

Egemen Aydin, Fatma Busra Yaman, Esra Ates Genceli, Emel Topuz, Esra Erdim, Melike Gurel, Murat Ipek, Elif Pehlivanoglu-Mantas^*

^*Corresponding author for this work

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

In pristine watersheds, natural organic matter is the main source of disinfection by-product (DBP) precursors. However, the presence of point or non-point pollution sources in watersheds may lead to increased levels of DBP precursors which in turn form DBPs in the drinking water treatment plant upon chlorination or chloramination. In this study, water samples were collected from a lake used to obtain drinking water for Istanbul as well as its tributaries to investigate the presence of the precursors of two disinfection by-products, trihalomethanes (THM) and N-nitrosodimethylamine (NDMA). In addition, the effect of seasons and the possible relationships between these precursors and water quality parameters were evaluated. The concentrations of THM and NDMA precursors measured as total THM formation potential (TTHMFP) and NDMA formation potential (NDMAFP) ranged between 126 and 1523μg/L THM and <2 and 1648ng/L NDMA, respectively. Such wide ranges imply that some of the tributaries are affected by anthropogenic pollution sources, which is also supported by high DOC, Cl ^- and NH ₃ concentrations. No significant correlation was found between the water quality parameters and DBP formation potential, except for a weak correlation between NDMAFP and DOC concentrations. The effect of the sampling location was more pronounced than the seasonal variation due to anthropogenic pollution in some tributaries and no significant correlation was obtained between the seasons and water quality parameters.

Original language	English
Pages (from-to)	86-91
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	221-222
DOIs	https://doi.org/10.1016/j.jhazmat.2012.04.012
Publication status	Published - 30 Jun 2012

Funding

This work was funded by the Scientific and Technological Research Council of Turkey (TUBITAK, Project # 108Y311) and Istanbul Technical University, Scientific Research Projects Fund (Project # 33608). Mr. Edip Avsar is acknowledged for his technical assistance in THM measurements.

Funders	Funder number
Istanbul Technical University, Scientific Research Projects Fund	33608
TUBITAK	108Y311
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

Disinfection by-products
Drinking water
LC-MS/MS
Organic nitrogen
Watershed

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jhazmat.2012.04.012

Cite this

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title = "Occurrence of THM and NDMA precursors in a watershed: Effect of seasons and anthropogenic pollution",

abstract = "In pristine watersheds, natural organic matter is the main source of disinfection by-product (DBP) precursors. However, the presence of point or non-point pollution sources in watersheds may lead to increased levels of DBP precursors which in turn form DBPs in the drinking water treatment plant upon chlorination or chloramination. In this study, water samples were collected from a lake used to obtain drinking water for Istanbul as well as its tributaries to investigate the presence of the precursors of two disinfection by-products, trihalomethanes (THM) and N-nitrosodimethylamine (NDMA). In addition, the effect of seasons and the possible relationships between these precursors and water quality parameters were evaluated. The concentrations of THM and NDMA precursors measured as total THM formation potential (TTHMFP) and NDMA formation potential (NDMAFP) ranged between 126 and 1523μg/L THM and <2 and 1648ng/L NDMA, respectively. Such wide ranges imply that some of the tributaries are affected by anthropogenic pollution sources, which is also supported by high DOC, Cl - and NH 3 concentrations. No significant correlation was found between the water quality parameters and DBP formation potential, except for a weak correlation between NDMAFP and DOC concentrations. The effect of the sampling location was more pronounced than the seasonal variation due to anthropogenic pollution in some tributaries and no significant correlation was obtained between the seasons and water quality parameters.",

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author = "Egemen Aydin and Yaman, {Fatma Busra} and {Ates Genceli}, Esra and Emel Topuz and Esra Erdim and Melike Gurel and Murat Ipek and Elif Pehlivanoglu-Mantas",

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T1 - Occurrence of THM and NDMA precursors in a watershed

T2 - Effect of seasons and anthropogenic pollution

AU - Aydin, Egemen

AU - Yaman, Fatma Busra

AU - Ates Genceli, Esra

AU - Topuz, Emel

AU - Erdim, Esra

AU - Gurel, Melike

AU - Ipek, Murat

AU - Pehlivanoglu-Mantas, Elif

PY - 2012/6/30

Y1 - 2012/6/30

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AB - In pristine watersheds, natural organic matter is the main source of disinfection by-product (DBP) precursors. However, the presence of point or non-point pollution sources in watersheds may lead to increased levels of DBP precursors which in turn form DBPs in the drinking water treatment plant upon chlorination or chloramination. In this study, water samples were collected from a lake used to obtain drinking water for Istanbul as well as its tributaries to investigate the presence of the precursors of two disinfection by-products, trihalomethanes (THM) and N-nitrosodimethylamine (NDMA). In addition, the effect of seasons and the possible relationships between these precursors and water quality parameters were evaluated. The concentrations of THM and NDMA precursors measured as total THM formation potential (TTHMFP) and NDMA formation potential (NDMAFP) ranged between 126 and 1523μg/L THM and <2 and 1648ng/L NDMA, respectively. Such wide ranges imply that some of the tributaries are affected by anthropogenic pollution sources, which is also supported by high DOC, Cl - and NH 3 concentrations. No significant correlation was found between the water quality parameters and DBP formation potential, except for a weak correlation between NDMAFP and DOC concentrations. The effect of the sampling location was more pronounced than the seasonal variation due to anthropogenic pollution in some tributaries and no significant correlation was obtained between the seasons and water quality parameters.

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KW - Drinking water

KW - LC-MS/MS

KW - Organic nitrogen

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ER -

Occurrence of THM and NDMA precursors in a watershed: Effect of seasons and anthropogenic pollution

Abstract

Funding

Keywords

UN SDGs

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