نتایج جستجو برای: غلظت pm10

تعداد نتایج: 46480  

2003
R. E. Lacey

Emissions rates for particulate matter less than 10 m (PM10) and ammonia (NH3) from commercial tunnel–ventilated broiler houses in central Texas were analyzed using linear regressions to develop emission rates as a function of bird weight for broilers on litter. Interior ambient temperature and relative humidity were not found to be significant factors affecting emissions. From the regression e...

2014
Vivian Chit Pun Ignatius Tak-sun Yu Kin-fai Ho Hong Qiu Zhiwei Sun Linwei Tian

BACKGROUND Ischemic heart disease (IHD) is a major public health concern. Although many epidemiologic studies have reported evidence of adverse effects of particulate matter (PM) mass on IHD, significant knowledge gaps remain regarding the potential impacts of different PM sources. Much the same as PM size, PM sources may influence toxicological characteristics. OBJECTIVES We identified contr...

2008
Andreas Limbeck Markus Handler Christoph Puls Johannes Zbiral Heidi Bauer Hans Puxbaum

PM10 levels of the mineral components Si, Al, Fe, Ca, Mg and some trace metals were measured at three different sites in the urban area of Vienna (Austria). Observed trace metal concentrations varied between less than 0.1 ngm 3 (Cd) and approximately 200 ngm 3 (Zn), mineral components showed enhanced concentrations ranging from 0.01 mgm 3 (Ca) to 16.3 mgm 3 (Si). The contribution of the respect...

ژورنال: مرتع و آبخیزداری 2020

ذرات گردوغبار به دلیل دستیابی به سیستم تنفس انسان تأثیرات مخربی بر سلامت انسان به­ویژه در مناطق شهری و صنعتی دارند. بنابراین پایش ذرات گردوغبار و بررسی روند مکانی و فصلی آن اهمیت ویژه‌ای دارد. هدف از انجام این تحقیق بررسی تغییرات فصلی و مکانی غلظت ذرات گردوغبار به تفکیک در اندازه‌های PM2.5، PM10 و TSP در حومۀ شهر اصفهان و ارتباط آن با پارامتر‌های هواشناسی می‌باشد. برای این منظور به کمک دستگاه ن...

Journal: :The Israel Medical Association journal : IMAJ 2015
Avraham Ebenstein Eyal Frank Yaniv Reingewertz

BACKGROUND Exposure to air pollution in the form of particulate matter smaller than 10 μm in diameter (PM10) has been associated with increased morbidity and mortality. However, since air pollution is correlated with confounding factors that might otherwise affect health, identifying the causal link has proven challenging. OBJECTIVES To identify the effect of PM10 on hospital admissions due t...

2016
Tianhao Zhang Wei Gong Zhongmin Zhu Kun Sun Yusi Huang Robert W. Talbot

The estimation of ambient particulate matter with diameter less than 10 μm (PM10) at high spatial resolution is currently quite limited in China. In order to make the distribution of PM10 more accessible to relevant departments and scientific research institutions, a semi-physical geographically weighted regression (GWR) model was established in this study to estimate nationwide mass concentrat...

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...

2015
Joo Hyun Jung

BACKGROUND Asian sand dust (ASD) that originates in the Mongolian Desert in the spring induces serious respiratory health problems throughout East Asia (China, Korea, Japan). PM10 (particulate matter with an aerodynamic diameter <10 μm) is a major air pollutant component in ASD. We studied the effects of PM10 on allergy symptoms in patients with allergic rhinitis during the spring season, when ...

2015
Sabri Ghazi Julie Dugdale Tarek Khadir

The paper describes a MAS (multi-agent system) simulation approach for controlling PM10 (Particulate Matter) crisis peaks. A dispersion model is used with an Artificial Neural Network (ANN) to predict the PM10 concentration level. The dispersion and ANN models are integrated into a MAS system. PM10 source controllers are modelled as software agents. The MAS is composed of agents that cooperate ...

2015
Asha B. Chelani

In this study the gap between the two exceedances is analyzed using time series analysis. The time series of PM10 (particulate matter of size less than 10 micron) observed during 2005–2013 in two cities; Nagpur and Chandrapur in central India is considered. Higher PM10 concentration is observed in Chandrapur as compared to Nagpur. Exponential relationship is observed between the average time be...

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