نتایج جستجو برای: particulate matter less than ten microns pm10

تعداد نتایج: 2407178  

2014
Meimei Xu Yuming Guo Yajuan Zhang Dane Westerdahl Yunzheng Mo Fengchao Liang Xiaochuan Pan

BACKGROUND Few studies have used spatially resolved ambient particulate matter with an aerodynamic diameter of <10 μm (PM10) to examine the impact of PM10 on ischemic heart disease (IHD) mortality in China. The aim of our study is to evaluate the short-term effects of PM10 concentrations on IHD mortality by means of spatiotemporal analysis approach. METHODS We collected daily data on air poll...

2010
F. Halek A. Kavousi F. Hassani

A simultaneous study on indoor and outdoor particulate matter concentrations was done in five elementary schools in central parts of Tehran, Iran. Three sizes of particles including PM10, PM2.5 and PM1.0 were measured in 13 classrooms within this schools during winter (January, February and March) 2009. A laserbased portable aerosol spectrometer Model Grimm-1.108, was used for the continuous me...

2013
Simone Georges El Khouri Miraglia Mariana Matera Veras Luis Fernando Amato-Lourenço Fernando Rodrigues-Silva Paulo Hilário Nascimento Saldiva

OBJECTIVES In order to assess if ambient air pollution in urban areas could be related to alterations in male/female ratio this study objectives to evaluate changes in ambient particulate matter (PM10) concentrations after implementation of pollution control programmes in São Paulo city and the secondary sex ratio (SRR). DESIGN AND METHODS A time series study was conducted. São Paulo's distri...

امین, محمدمهدی, تالش علیپور, مریم, جعفری, نگار, صادقی, مجتبی, عبداله نژاد, علی, فرخ زاده, حسین,

Background and purpose: Air pollution is one of the most important environmental issues and its impact on human health has been proven in the 20th century. Many air pollutants such as CO, NO2, SO2, O3, particulate matter (PM10), heavy metals, radon, etc. could have negative health effects. The aim of this study was to determine the concentration of PM10, lead, and radon in the air of Spahanshah...

2011
Luciano Telesca Michele Lovallo

We investigated the complex temporal fluctuations of particulate matter data recorded in London area by using the Fisher-Shannon (FS) information plane. In the FS plane the PM10 and PM2.5 data are aggregated in two different clusters, characterized by different degrees of order and organization. This results could be related to different sources of the particulate matter.

Journal: :Environmental Health Perspectives 1997
M Lipsett S Hurley B Ostro

During the winters of 1986-1987 through 1991-1992, rainfall throughout much of Northern California was subnormal, resulting in intermittent accumulation of air pollution, much of which was attributable to residential wood combustion (RWC). This investigation examined whether there was a relationship between ambient air pollution in Santa Clara County, California and emergency room visits for as...

2015
Pulong Chen Tijian Wang Xin Hu Min Xie

In recent years, atmospheric particulate matter has become the primary air pollutant in Nanjing, China. In order to support a scientific basis for particles reduction, it is of great importance to investigate the contribution of different sources to particulate matter. In this paper, the characteristics of chemical composition of observational data for size-fractionated particulate matter at Gu...

Journal: :Research report 2006
James J Schauer Glynis C Lough Martin M Shafer William F Christensen Michael F Arndt Jeffrey T DeMinter June-Soo Park

A systematic approach was used to quantify the metals present in particulate matter emissions associated with on-road motor vehicles. Consistent sampling and chemical analysis techniques were used to determine the chemical composition of particulate matter less than 10 microm in aerodynamic diameter (PM10*) and particulate matter less than 2.5 microm in aerodynamic diameter (PM2.5), including a...

2013
RITA SINGH MASTAN SINGH RAJIV GARG SM NATU

Vehicular exhaust mainly consisting particulate matter sometimes called black carbon pollution is a mixture of solid and liquid components that form tiny particles that float in the air as a result of combustion of fuel. The aim of this study is to evaluate the effect of respirable suspended particulate matter (RSPM/PM10) on the automated count (WBC, TLC, DLC, ESR) and lipid profile (S. Cholest...

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...

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