Assignment Problem: Introduction
The Canadian Environmental Sustainability Indicators (CESI) collects data on ground-level ozone (O3) and particulate matter less than 2.5 micrometers in diameter (PM2.5) for air quality trend analysis. In this learning activity, you will use the CESI data for Air Quality to explore raw and trend data for a monitoring station in or near your community. By using the web and your own local knowledge, you will research supporting information (monitoring station location, nearby emission sources, prevailing wind direction) and discuss what contributes to the condition of air quality in your community.
Instructions:
For this exercise use the CESI's interactive maps for Air Quality. Select one of the appropriate air quality indicators. Next, zoom in to locate the data for a town or city near where you live (you may also select a station in or near a community you are familiar with instead of where you are currently living). Click on the monitoring station map point, then click 'Details - More information' to open a webpage containing information on trends for your selected community and comparison with national averages.
Next, identify potential emission sources near your monitoring station. You can return to the drop-down menu and select one of the indicators that begins with 'Emission'- this will bring up a map of emission sources, such as industrial plants.
Consider the following questions below as you explore the data and then post your summary to the online discussions.
Identify which community you selected. What are the measurements for O3 and PM2.5 for your community on the map webpage? Over what time period are these levels calculated?
Is there any noticeable trend for either pollutant over the time period that data is graphed? How does your community compare with the national average for each pollutant?
Applying your knowledge of local activity and prevailing winds, what do you think are the largest emission sources?
How is air quality affected by the geography of your community? Consider information from newspapers and your own local knowledge and experience.