The occurrence of Hypogymnia physodes and Melanelia olivacea lichens on birch stems in northern boreal forest influenced by local air pollution

2001 ◽  
Vol 55 (2) ◽  
pp. 94-98
Author(s):  
D. Aamlid, I. Skogheim
Keyword(s):  
Air Pollution ◽  
Boreal Forest ◽  
Hypogymnia Physodes ◽  
Local Air Pollution

scholarly journals Contribution of Local and Transboundary Air Pollution to the Urban Air Quality of Fukuoka, Japan

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 431
Author(s):  
Ayako Yoshino ◽  
Akinori Takami ◽  
Keiichiro Hara ◽  
Chiharu Nishita-Hara ◽  
Masahiko Hayashi ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Urban Areas ◽  
Air Pollutants ◽  
Regional Scale ◽  
Gaseous Species ◽  
Transboundary Air Pollution ◽  
Local Air Pollution ◽  
The City

Transboundary air pollution (TAP) and local air pollution (LAP) influence the air quality of urban areas. Fukuoka, located on the west side of Japan and affected by TAP from the Asian continent, is a unique example for understanding the contribution of LAP and TAP. Gaseous species and particulate matter (PM) were measured for approximately three weeks in Fukuoka in the winter of 2018. We classified two distinctive periods, LAP and TAP, based on wind speed. The classification was supported by variations in the concentration of gaseous species and by backward trajectories. Most air pollutants, including NOx and PM, were high in the LAP period and low in the TAP period. However, ozone was the exception. Therefore, our findings suggest that reducing local emissions is necessary. Ozone was higher in the TAP period, and the variation in ozone concentration was relatively small, indicating that ozone was produced outside of the city and transported to Fukuoka. Thus, air pollutants must also be reduced at a regional scale, including in China.

Control and Suppression in Sarnia’s Chemical Valley during the 1960s

2020 ◽  
Vol 21 (2) ◽  
pp. 380-412
Author(s):  
OWEN TEMBY
Keyword(s):  
Air Pollution ◽  
Business Environment ◽  
Policy System ◽  
Pollution Levels ◽  
Clean Air ◽  
Local Air Pollution ◽  
Economic Elites ◽  
Chemical Valley ◽  
The 1960S ◽  
The One

During the 1960s, Sarnia was the wealthiest city in Ontario and the one with the dirtiest air. Its economy was dominated by Chemical Valley, the city’s petrochemical industry. Chemical Valley firms and executives were civically active, donating to public causes, dominating the local chamber of commerce, and working closely with provincial and municipal officials to ensure a friendly business environment. They also maintained a monopoly on information about local air pollution levels and were not required by government to adhere to clean air regulations. However, like the rest of the chemical industry at the time, Chemical Valley was exposed to an onslaught of negative publicity, raising the threat of regulation and loss of their control over emissions data and production processes. This article illustrates how economic elites in Sarnia prevented the problematization and regulation of air pollution. In doing so, it describes the actors in the policy system and examines its recourse to suppress dissent when activists sought to raise the air pollution issue.

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