scholarly journals Estimated Reduction in Cancer Risk due to PAH Exposures If Source Control Measures during the 2008 Beijing Olympics Were Sustained

2011 ◽  
Vol 119 (6) ◽  
pp. 815-820 ◽  
Author(s):  
Yuling Jia ◽  
Dave Stone ◽  
Wentao Wang ◽  
Jill Schrlau ◽  
Shu Tao ◽  
...  
Keyword(s):  
Cancer Risk ◽  
Control Measures ◽  
Source Control ◽  
Beijing Olympics ◽  
2008 Beijing Olympics

scholarly journals Trends in PM2.5 Concentration in Nagoya, Japan, from 2003 to 2018 and Impacts of PM2.5 Countermeasures

Atmosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 590
Author(s):  
Makiko Yamagami ◽  
Fumikazu Ikemori ◽  
Hironori Nakashima ◽  
Kunihiro Hisatsune ◽  
Kayo Ueda ◽  
...  
Keyword(s):  
Fine Particulate Matter ◽  
Control Measures ◽  
Source Control ◽  
Atmospheric Concentration ◽  
Construction Machinery ◽  
Emission Regulations ◽  
Volatile Organic ◽  
Stationary Sources ◽  
Pm2.5 Concentration

In Japan, various countermeasures have been undertaken to reduce the atmospheric concentration of fine particulate matter (PM2.5). We evaluated the extent to which these countermeasures were effective in reducing PM2.5 concentrations by analyzing the long-term concentration trends of the major components of PM2.5 and their emissions in Nagoya City. PM2.5 concentrations decreased by 53% over the 16-year period from fiscal years 2003 to 2018 in Nagoya City. Elemental carbon (EC) was the component of PM2.5 with the greatest decrease in concentration over the 16 years, decreasing by 4.3 μg/m3, followed by SO42− (3.0 μg/m3), organic carbon (OC) (2.0 μg/m3), NH4+ (1.6 μg/m3), and NO3− (1.3 μg/m3). The decrease in EC concentration was found to be caused largely by the effect of diesel emission control. OC concentrations decreased because of the effects of volatile organic compound (VOC) emission regulations for stationary sources and reductions in VOCs emitted by vehicles and construction machinery. NO3− concentrations decreased alongside decreased contributions from vehicles, construction machinery, and stationary sources, in descending order of the magnitude of decrease. Although these findings identify some source control measures that have been effective in reducing PM2.5, they also reveal the ineffectiveness of some recent countermeasures for various components, such as those targeting OC concentrations.

scholarly journals Satellite-based estimates of reduced CO and CO2emissions due to traffic restrictions during the 2008 Beijing Olympics

2012 ◽  
Vol 39 (14) ◽  
pp. n/a-n/a ◽  
Author(s):  
Helen M. Worden ◽  
Yafang Cheng ◽  
Gabriele Pfister ◽  
Gregory R. Carmichael ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Beijing Olympics ◽  
2008 Beijing Olympics

Ensuring and Promoting Food Safety During the 2008 Beijing Olympics

2010 ◽  
Vol 7 (8) ◽  
pp. 981-983 ◽  
Author(s):  
Gerald G. Moy ◽  
Fanfan Han ◽  
Junshi Chen
Keyword(s):  
Food Safety ◽  
Beijing Olympics ◽  
2008 Beijing Olympics

scholarly journals Simulating future trends in urban stormwater quality for changing climate, urban land use and environmental controls

2013 ◽  
Vol 68 (9) ◽  
pp. 2082-2089 ◽  
Author(s):  
Matthias Borris ◽  
Maria Viklander ◽  
Anna-Maria Gustafsson ◽  
Jiri Marsalek
Keyword(s):  
Land Use ◽  
Urban Land Use ◽  
Control Measures ◽  
Source Control ◽  
Stormwater Quality ◽  
Urban Stormwater ◽  
Pollutant Loads ◽  
Changing Climate ◽  
Environmental Controls ◽  
Urban Stormwater Quality

The effects of climatic changes, progressing urbanization and improved environmental controls on the simulated urban stormwater quality in a northern Sweden community were studied. Future scenarios accounting for those changes were developed and their effects simulated with the Storm Water Management Model (SWMM). It was observed that the simulated stormwater quality was highly sensitive to the scenarios, mimicking progressing urbanization with varying catchment imperviousness and area. Thus, land use change was identified as one of the most influential factors and in some scenarios, urban growth caused changes in runoff quantity and quality exceeding those caused by a changing climate. Adaptation measures, including the reduction of directly connected impervious surfaces (DCIS) through the integration of more green spaces into the urban landscape, or disconnection of DCIS were effective in reducing runoff volume and pollutant loads. Furthermore, pollutant source control measures, including material substitution, were effective in reducing pollutant loads and significantly improving stormwater quality.

An Outbreak of Salmonella Chester Infection in Canada: Rare Serotype, Uncommon Exposure, and Unusual Population Demographic Facilitate Rapid Identification of Food Vehicle

2012 ◽  
Vol 75 (4) ◽  
pp. 738-742 ◽  
Author(s):  
JOHN TAYLOR ◽  
ELENI GALANIS ◽  
LYNN WILCOTT ◽  
LINDA HOANG ◽  
JASON STONE ◽  
...  
Keyword(s):  
Rapid Identification ◽  
Food Samples ◽  
Grocery Store ◽  
Control Measures ◽  
Source Control ◽  
Public Health Agencies ◽  
Patient Interviews ◽  
Microbiological Testing ◽  
Canadian Provinces ◽  
Population Demographic

Salmonella Chester infection has rarely been reported in the literature. In 2010, 33 case patients were reported in 2 months in four Canadian provinces. We conducted an outbreak investigation in collaboration with public health agencies, food safety specialists, regulatory agencies, grocery store chains, and the product distributor. We used case patient interviews, customer loyalty cards, and microbiological testing of clinical and food samples to identify nationally distributed head cheese as the food vehicle responsible for the outbreak. The rare serotype, a limited affected demographic group, and an uncommon exposure led to the rapid identification of the source. Control measures were implemented within 9 days of notification of the outbreak.

scholarly journals The Effect of the Covid-19 Lockdown on Air Quality in Three Italian Medium-Sized Cities

Atmosphere ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1118 ◽  
Author(s):  
Gabriele Donzelli ◽  
Lorenzo Cioni ◽  
Mariagrazia Cancellieri ◽  
Agustin Llopis Morales ◽  
Maria Morales Suárez-Varela
Keyword(s):  
Air Quality ◽  
Heavy Traffic ◽  
Urban Environments ◽  
Meteorological Conditions ◽  
Control Measures ◽  
Source Control ◽  
Vehicular Traffic ◽  
Urban Centers ◽  
Italian Government ◽  
The Impact

Despite the societal and economic impacts of the COVID-19 pandemic, the lockdown measures put in place by the Italian government provided an unprecedented opportunity to increase our knowledge of the effect transportation and industry-related emissions have on the air quality in our cities. This study assessed the effect of reduced emissions during the lockdown period, due to COVID-19, on air quality in three Italian cities, Florence, Pisa, and Lucca. For this study, we compared the concentration of particulate matter PM10, PM2.5, NO2, and O3 measured during the lockdown period, with values obtained in the same period of 2019. Our results show no evidence of a direct relationship between the lockdown measures implemented and PM reduction in urban centers, except in areas with heavy traffic. Consistent with recently published studies, we did, however, observe a significant decrease in NO2 concentrations among all the air-monitoring stations for each city in this study. Finally, O3 levels remained unchanged during the lockdown period. Of note, there were slight variations in the meteorological conditions for the same periods of different years. Our results suggest a need for further studies on the impact of vehicular traffic and industrial activities on PM air pollution, including adopting holistic source-control measures for improved air quality in urban environments.

scholarly journals Ambient Gaseous Pollutants in an Urban Area in South Africa: Levels and Potential Human Health Risk

Atmosphere ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 751 ◽  
Author(s):  
Oyewale Mayowa Morakinyo ◽  
Murembiwa Stanley Mukhola ◽  
Matlou Ingrid Mokgobu
Keyword(s):  
South Africa ◽  
Cancer Risk ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Public Health Problem ◽  
Ambient Air ◽  
Control Measures ◽  
Assessment Model ◽  
Gaseous Pollutants

Urban air pollution from gaseous pollutants is a growing public health problem in many countries including South Africa. Examining the levels, trends and health risk of exposure to ambient gaseous pollutants will assist in understanding the effectiveness of existing control measures and plan for suitable management strategies. This study determined the concentration levels and non-cancer risk of CO, SO2, NO2, and O3 at an industrial area in Pretoria West, South Africa. We utilised a set of secondary data for CO, NO2, SO2, and O3 that was obtained from a monitoring station. Analysis of the hourly monitored data was done. Their non-cancer risk (HQ) was determined using the human health risk assessment model for different age categories. The annual levels of NO2 (39.442 µg/m3), SO2 (22.464 µg/m3), CO (722.003 µg/m3) and the 8-hour concentration of CO (649.902 µg/m3) and O3 (33.556 µg/m3) did not exceed the South African National Ambient Air Quality Standards for each pollutant. The HQ for each pollutant across exposed groups (except children) was less than 1. This indicates that the recorded levels could not pose non-cancer risk to susceptible individuals.

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