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SCHOOL ABSENCES: A CONSEQUENCE OF AIR POLLUTION IN CALIFORNIA?. ASSESSING THE PROBLEM. “The state calculates that meeting the hourly and daily ozone standards will alleviate 3.3 million school absences each year for California’s kids.” -The Environmental Working Group Goals: - PowerPoint PPT Presentation
Citation preview
SCHOOL ABSENCES: A CONSEQUENCE OF
AIR POLLUTION IN CALIFORNIA?
ASSESSING THE PROBLEM
“The state calculates that meeting the hourly and daily ozone standards will al leviate 3.3 mil l ion school absences each year for California’s kids.”
- The E nv i r onmen t a l Wor k ing G r oup
Goals: - To uti l ize GIS as a tool to i l lustrate the health impacts
of poor air quality on California’s population. - To determine if there is a l ink between poor air quality
and school absences- To determine if there are signif icant impacts to public
school funding
All Other44%
106-120 Days12%
91-105 Days3%
76-90 Days26%
61-75 Days15%
Percentage of Schools that may be Impacted by Poor Air
Quality
160-120 Days of poor AQ – 1558 Schools91-105 Days of poor AQ – 343 Schools76-90 Days of poor AQ – 3335 Schools61-75 Days of poor AQ – 1888 Schools**Schools not heavily impacted: 5523
Total Number ofAsthma Hospitalizations
- According to the Rand Corporation, in 2009, there were 343 public schoolsthat had a daily attendance under 90%.
Sources:
Environmental Protection Agency. “Air Compare- County Comparisons.” http://www.epa.gov/aircompare/compare.htm
California Breathing. “Asthma Profiles: County Comparison Charts.” http://www.californiabreathing.org/asthma-data/county-comparisons
Rand Corporation. “Enrollment Statistics.” http://ca.rand.org/stats/education/enroll.html
Rand Corporation. “Average Daily Attendance.”http://ca.rand.org/stats/education/attendance.html
Rand Corporation. “Annual Per Pupil Spending by District.”http://ca.rand.org/stats/education/perpupil.html
California Department of Education. “Public School Database.” http://www.cde.ca.gov/ds/si/ds/pubschls.asp
Skills Used:
- Slide 3: inset map- Slide 7: aggregating attribute fields
- “Perc_ada < 90”- Percent average daily attendance < 90%
- Slide 6: creating indices- “Co_perc_ad * co_enrollment = avg_ada”- (average % daily attendance) * (county enrollment) = (average number of kids per day in attendance)- co_enrollment – avg_ada = avg_absences- (county enrollment) – (avg. number of kids per day in attendance) = (avg. number of daily absences)
- Slide 7: point graduated symbol- Slide 7: geocoding- Slide 4: geocoding and graph