نتایج جستجو برای: characteristics of pollutants

تعداد نتایج: 21186729  

Journal: :EMBO reports 2003
Florencio Pazos Alfonso Valencia Víctor De Lorenzo

Microbial biodegradation of environmental pollutants is a field of growing importance because of its potential use in bioremediation and biocatalysis. We have studied the characteristics of the global biodegradation network that is brought about by all the known chemical reactions that are implicated in this process, regardless of their microbial hosts. This combination produces an efficient an...

Journal: :Air Quality, Atmosphere & Health 2021

Rural areas of developing countries have various indoor air pollution sources along with solid fuels used for cooking. This study aims to compare five sources, viz., incense stick, dhoop, mosquito coil, cigarette, and cooking fuel charcoal, respect their potential. The monitoring PM, CO, CO2, NO2, particulate bound heavy metals was carried out. Dhoop (DH1) found be emitting the highest concentr...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده دامپزشکی 1389

چکیده: بررسی مقایسه ای گونه های مختلف مالاسزیا در پوست و گوش گوساله های نوزاد با مادرانشان با استفاده از روشهای مورفولوژیکی، بیوشیمیایی و فیزیولوژیکی مخمرهای لیپوفیلیک جنس مالاسزیا جزء فلور نرمال جلدی انسان و حیوانات می باشند که تحت شرایطی بیماریزا می شوند. از آنجایی که نه تنها گونه غیر وابسته به چربی بلکه سایر گونه های مالاسزیا از حیوانات مختلف جداسازی می شود لذا بررسی اپیدمیولوژی و انتشار ج...

2017
Yu-Sheng Shen Shih-Chun Candice Lung

Previous studies have shown both health and environmental benefits of green spaces, especially in moderating temperature and reducing air pollution. However, the characteristics of green structures have been overlooked in previous investigations. In addition, the mediation effects of green structures on respiratory mortality have not been assessed. This study explores the potential mediation pa...

Journal: :The European respiratory journal 1995
T Sandström

Epidemiological and environmental chamber studies in man, and toxicological studies in animals, have provided valuable insights into the biological effects, the mechanisms of action, and the dose-response characteristics of some major air pollutants. This review describes the information currently available on air pollutant effects in man, as the result of experimental studies. There are certai...

Journal: :Environmental Health Perspectives 1993
L J Folinsbee

Over the past three or four decades, there have been important advances in the understanding of the actions, exposure-response characteristics, and mechanisms of action of many common air pollutants. A multidisciplinary approach using epidemiology, animal toxicology, and controlled human exposure studies has contributed to the database. This review will emphasize studies of humans but will also...

2009
Avnish Chauhan

The study aimed to appraise the effect of different air pollutants viz. SO2, NOx, SPM and RSPM on biophysiological as well as yield characteristics of wheat and mustard plants grown at different sites in the urban and industrial areas of Haridwar City. The ambient levels of air pollutants were lowest at site 2 and 4 and hence these sites were treated as control sites for comparing the response ...

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