نتایج جستجو برای: water pollution measurement

تعداد نتایج: 1018697  

2014
Pallavi Srivastava Ajay Singh

The purpose of this study was to assess the water qualities and genotoxicity of Maheshara Lake situated near Gorakhpur, India. The lake receives many types of pollutants from two industries, agricultural run-off and domestic sewages. A total of five sampling stations were established for measurement of water pollution and the measurement of cytogenetic alterations in vivo is considered an initi...

2017
Xiao Wang Yong Pang Hua Wang Chunqi Shen Xue Wang

As pollution incidents frequently occurred in the functional water areas of the Taihu Basin, Yangtze Delta, effective emission control to guarantee water quality in the Taihu Basin became the priority for environmental management. In this study, a new total emission control (TEC) method was proposed with an emphasis on the concept of water environmentally sensitive areas (WESAs). This method wa...

2017
Jacek A Koziel Timothy S Frana Heekwon Ahn Thomas D Glanville Lam T Nguyen J Hans van Leeuwen

Managing the disposal of infectious animal carcasses from routine and catastrophic disease outbreaks is a global concern. Recent research suggests that burial in lined and aerated trenches provides the rapid pathogen containment provided by burial, while reducing air and water pollution potential and the length of time that land is taken out of agricultural production. Survival of pathogens in ...

Journal: :New Zealand Journal of Marine and Freshwater Research 1974

2017
Manhong Shen Yongliang Yang

Boundary environmental pollution and pollution spillovers are important issues for improving the water quality of trans-boundary rivers. This paper explores the empirical effects of the evolution of the pollution reduction mandates on boundary pollution by studying the change of water pollution levels (as proxied by pH, BOD, COD and NH3-N) of key state monitoring stations from 2004 to 2014. The...

Journal: :iranian journal of toxicology 0
مهرداد چراغی mehrdad cheraghi department of environment, hamedan branch, islamic azad university, hamedan, iran. سهیل سبحان اردکانی soheil sobhanardakani department of environment, hamedan branch, islamic azad university, hamedan, iran. رضیه زندی پاک raziyeh zandipak msc of environmental sciences, young researchers & elite club, hamedan branch, islamic azad university, hamedan, iran. بهاره لرستانی bahareh lorestani department of environment, hamedan branch, islamic azad university, hamedan, iran. هاجر مریخ پور hajar merrikhpour department of chemistry, university of sayyed jamaleddin asadabadi, asadabad, iran.

background: the presence of lead in natural waters has become an important issue around the world. lead has been identified as a highly toxic metal that can cause severe environmental and public health problems and its decontamination is of utmost importance. the aim of this work was to evaluate the adsorption of lead (pb(ii)) on waste tea leaves as a cheap purification method. methods: in this...

Journal: :health scope 0
jalaleddin mollaei department of environmental health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran seyed bagher mortazavi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-2182883845, fax: +98-2182883845 ahmad jonidi jafari department of environmental health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of environmental health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran

background detergents and difficulties of their presence in the water and wastewater cause various problems such as foam production, anomalies in the growth of algae, and accumulation and dispersion in aqueous environments. objectives the aim of this study was to examine and compare the moving bed biofilm reactor with another reactor without media (carries) for anionic surfactants removal. mate...

2013
Toshisuke Maruyama Masashi Yoshida Keiji Takase Hiroshi Takimoto Shigeo Ishikawa Sadao Nagasaka

To evaluate the nitrogen pollution load in an aquifer, a water and nitrogen balance analysis was conducted over a thirty-five year period at five yearly intervals. First, we established a two-horizon model comprising a channel/soil horizon, and an aquifer horizon, with exchange of water between the aquifer and river. The nitrogen balance was estimated from the product of nitrogen concentration ...

Journal: :desert 2010
k. rezaei tavabe m.a zare chahouki a. yazdanpanah a. vazirzadeh

abstract shahdadroud river is one of the most important rivers in kerman province that during previous years has been threatened by drought and anthropogenic pollution. this river supplies some parts of drinking water of kerman city and some vicinity villages. the main objective of the present study is consideration of pollution situation of the river; for this purpose, limnological and biologi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید