نتایج جستجو برای: trihalomethanes

تعداد نتایج: 562  

Journal: :The Journal of the Egyptian Public Health Association 2006
Manal A Mohamed Ahmed H Hassan Mamdouh A El Messiry Reham A Hazzaa

Prechlorination is used as an initial step in water purification for public supply. One of the drawbacks of the prechlorination is the reaction between natural organic matters with chlorine forming trihalmethanes. This study aims at evaluating the performance of granular activated carbon (GAC) with sand as a dual filtering media with different depths on removal of trihalomethanes (THMs) for imp...

Journal: :The Science of the total environment 2007
Gen-Shuh Wang Ya-Chen Deng Tsair-Fuh Lin

This study intends to calculate the lifetime cancer risks resulting from intakes of trihalomethanes (THMs) in drinking water based on the presence of each THM species. The slope factors for each THM species are used, combined with exposure model and Monte Carlo simulations, to calculate the cancer risks with consideration of different exposure routes (oral ingestion, inhalation and dermal absor...

Journal: :Occupational and environmental medicine 2006
C M Villanueva K P Cantor J O Grimalt G Castaño-Vinyals N Malats D Silverman A Tardon R Garcia-Closas C Serra A Carrato N Rothman F X Real M Dosemeci M Kogevinas

OBJECTIVES To evaluate lifetime exposure to trihalomethanes (THM) through ingestion, inhalation, and dermal absorption in a hospital based case-control study of bladder cancer conducted between 1998 and 2001 in five areas of Spain. The study base was comprised of subjects living in the catchment areas of the participating hospitals. METHODS Individual information on water related habits was o...

2002
Geoffrey B. Smith

............................................................................................. vi JUSTIFICATION ........................................................................................ 1 METHODS ................................................................................................ 2 ..................................................................... RESULTS AND SIGNIF...

Journal: :Journal of Engineering and Technological Sciences 2022

The presence of dissolved organic matter (DOM) in tropical peat water affects the appearance trihalomethanes (THMs) and haloacetic acids (HAAs) natural sources. However, information about THM HAA is still limited. This study was conducted to determine THMs HAAs taken from a canal river Riau Peatland, Indonesia, influenced by seasons tides. DOM measured carbon (DOC) UV254 absorbance. determined ...

2010
Avima Ruder

rd HJ. Reverse dosimetry: interpreting trihalomethanes biomonitoring data using physiologically based pharmacokinetic modeling. Use of a physiologically based pharmacokinetic model to identify exposures consistent with human biomonitoring data for chloroform. et al. Bladder cancer and exposure to water disinfection by-products through ingestion, bathing, showering, and swimming in pools. AD. Th...

Journal: :Chemosphere 2002
Spyros K Golfinopoulos George B Arhonditsis

The presence of trihalomethanes (THMs) in drinking water has attracted the attention of both researchers and professionals, because of the harmful effects of these substances on human health. A multiple regression model was developed to estimate THM concentrations in finished drinking water, using data from the Menidi Treatment Plant of Athens. A number of routinely measured characteristics--in...

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