Ozone Concentration, California

The above map was created by Mwahaki King on April 13, 2016, using ArcGIS Interpolation Tools to demonstrate ozone concentration in California and areas of concern. The most recent data available to the cartographer at the time of the map's creation was from the year 2007. The California data was provided by the California State GIS Department. The ozone dataset was provided by the California Air Resources Board and represents the concentration of ozone measured on September 6, 2007 between 3:00PM - 4:00PM in parts per million (ppm). 

From the ozone point samples (measurements), Mwahaki King produced a continuous surface predicting the value of ozone concentration for every location in the state of California. Often, it is not the actual values of a certain critical health risk that are of concern, but rather whether the values are above a certain toxic level. If this occurs, immediate action should be taken.

For this project, the critical threshold was determined to be any ozone value above 0.09ppm as this is California State's ambient air quality standard for hourly measurements. Any location with an ozone concentrate above 0.09 should be closely monitored.

Data Sources:
California Air Resources Board
California State GIS Department
ESRI Data Maps

Suitable Farm Land, Groton MA

The above map was created by Mwahaki King in March 2016, using vector analysis in ArcGIS software to determine suitable farmland in Groton, Massachusetts.

The Suitability Criteria were as follows:
Farm Land must:
1. Have a minimum lot size of two acres
2. Not be on wetlands
3. Be land that is suitable for agricultural activities
4. Have prime farm land soil that is good for farming

The most recent data available to the cartographer at the time of the map's creation was from the year 2005.

Data Sources:
MassGIS
ESRI

African-American Renters in Suffolk County, MA

The above map was created by Mwahaki King using ArcGIS software on February 23, 2016 to demonstrate the percentage of African-American renters in Suffolk County Massachusetts, in relation to total renter population. The most recent geographic, housing and ethnic data available to the cartographer at the time of the map's creation was from the year 2010.

Data Sources:
Census.gov
ESRI Data Maps