نتایج جستجو برای: respirable suspended particulate matter rspm

تعداد نتایج: 248283  

Journal: :Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2011
Byron K Norris Aimee P Goodier Thomas L Eby

OBJECTIVES The Occupational Health and Safety Administration (OSHA) outlines specific requirements governing the use of respiratory protection for workers dealing with dust or other aerosolized compounds. Health care workers may be exposed to bone dust produced during otologic procedures, creating an occupational hazard. The purpose of this research was to quantify the total suspended particula...

2010
Subrata Chattopadhyay Srimanta Gupta Raj Narayan Saha

This study investigated the seasonal variation of ambient air quality status of Burdwan town using GIS approach. Concentration of SO2 (sulphur dioxide), NO2 (nitrogen dioxide) and RSPM (respiratory suspended particulate matter) were measured once a week for 24 hour in both premonsoon and postmonsoon season. The seasonal average concentration of the RSPM, SO2 and NO2 in premonsoon season was obs...

2014
Tapan Dey Kabita Gogoi Bala Gopalan Unni Munmi Kalita Moonmee Bharadwaz Minakshi Bhattacharjee Pranab Kumar Boruah Thaneswar Bora Dibyajyoti Ozah Manoj Kalita

BACKGROUND COPD may develop due to variation in the functioning of antioxidants along with smoking and environmental factors in genetically susceptible individuals. Since there are different views about the antioxidants responsible for detoxifying xenobiotic compound in the human body whose functional variation may lead to obstructive disease, this associative study has been taken up between GS...

Journal: :Atmosphere 2022

Background: Cooking and fuel combustion in the indoor environment are major sources of respirable suspended particulate matter (RSPM), which is an excellent carrier potentially harmful absorbed inorganic organic compounds. Chronic exposure to RSPM can lead acute pulmonary illness, asthma, cardiovascular disease, lung cancer people involved cooking. Despite this, questions remain about harmfulne...

ژورنال: طب کار 2018

Abstract Background and purpose: Particulate matter air pollution is one of the most important risk factors for cardiovascular and respiratory diseases. By increasing the number of tile and ceramic industries in the two past decades, workers in these industries exposed to pathogenic respirable particulate matter pollutants. Therefore, this study aimed to assess respiratory exposure to airborne...

Journal: :international journal of environmental research 0

effect of automobile pollution on the productivity of crocus sativus was studied for one year time period (october 2005-april 2006). the parameters which were analyzed viz total chlorophyll, carotenoids, leaf area, plant height, corm size, corm weight, corm yield, biomass, flower production, and length of stigma and style, showed a remarkable decrease as compared to control. total chlorophyll ,...

Journal: :Environmental monitoring and assessment 2007
Mrinal K Ghose S R Majee

Surface coal mining creates more air pollution problems with respect to dust than underground mining . An investigation was conducted to evaluate the characteristics of the airborne dust created by surface coal mining in the Jharia Coalfield. Work zone air quality monitoring was conducted at six locations, and ambient air quality monitoring was conducted at five locations, for a period of 1 yea...

Journal: :Journal of Environmental Conservation Engineering 1981

Journal: :تحقیقات نظام سلامت 0
ادریس حسین زاده کارشناس ارشد، گروه مهندسی بهداشت محیط، دانشکده بهداشت، مرکز تحقیقات بهداشت تغذیه، دانشگاه علوم پزشکی لرستان، خرم آباد، ایران محمدرضا سمرقندی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان، ایران فرشید قربانی شهنا دانشیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان، ایران قدرت اله روشنایی دانشیار، گروه آمار و اپیدمیولوژی، دانشکده بهداشت، مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان، ایران جواد جعفری دانشجوی دکتری، گروه بهداشت محیط، دانشکده پزشکی دانشگاه تربیت مدرس، تهران، ایران

background: the objective of this study was to measure the total suspended particulate (tsp), pm 10 and pm 2.5 air particulates in the selected intercity bus stations located in the central square of hamadan, to review the distribution concentration of the air particulates content and to evaluate its possible health risk to the people who spent little time of their daily time in those places. m...

Journal: :Journal of environmental biology 2010
Sukesh Narayan Sinha N M Desai G M Patel M M Mansuri V Shivgotra

Water extract of respirable particulate matter (RPM) was analyzed by Ion chromatography technique to investigate the presence of nitrite (NO2) as secondary aerosol in ambient environment. The nitrite particulates undergo photo hydroxyl radical reaction in environment produce nitrous acid, which reacts with metal and absorbs on RPM as water-soluble metal salt. The mean concentration of nitrite w...

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