کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6342624 1620421 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Potential impacts of an Emission Control Area on air quality in Alaska coastal regions
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Potential impacts of an Emission Control Area on air quality in Alaska coastal regions
چکیده انگلیسی

The Alaska-adapted WRF/Chem was used to examine the benefits of the proposed North American Emission Control Area (ECA) for air quality along the Alaska coasts. Simulations were performed alternatively assuming the emissions of 2000, and the emissions of 2000 reduced by the proposed ECA-reductions. In response to the emission reductions, reductions in sulfur (nitrogen) compounds reached up to 9 km (2 km) height. Reductions of sulfate- and nitrate-in-clouds were highest at the top of the atmospheric boundary layer. The strongest reductions occurred over the ECA and the international sea-lanes for sulfur- and nitrogen-compounds, respectively. Along the Gulf of Alaska, sulfur- and nitrogen-compound concentrations decreased significantly in response to the reduced ship-emissions. They decreased over Alaska despite of unchanged emissions in Alaska. PM2.5-speciation only marginally changed in response to the reduced ship-emissions.

► ECA-related SO2- and NOx-ship-emission reductions improve air quality in Alaska. ► The PM2.5-speciation marginally changes in response to the reduced ship-emissions. ► Air quality in the Gulf of Alaska improves significantly due to ECA reduced ship-emission.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 50, April 2012, Pages 192-202
نویسندگان
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