A CIESE Realtime Data Project

Ozone Tracking - Air Pollution: What's the Solution?

Tracking Ozone

 -> Is it possible to track an Ozone Event?

In this activity, you will track (record and compare) the levels of ozone in Trenton, New Jersey for several days and make final decisions about the influence of weather on ground level ozone. You will need a computer with internet access and a copy of the Student Worksheet and graph paper.

Student Worksheet 
Ozone graph paper
Temperature (F) graph paper
Temperature (C) graph paper
Wind Speed (mph) graph paper
Wind Speed (kmh) graph paper

PART 1: Gather the Data

  1. Working as a group, collect the ozone data for Trenton, NJ for July 16 - 21, 2012. Note: These images are not animated like the images used in the previous lesson.
    July 16 July 17 July 18  July 19
    July20 July 21  
  2. Determine the AQI Color, Air Quality, and Maximum AQI Value for all six days and enter the data into the table on the Student Worksheet . For this information, go to the AirNow Archives and select the dates from the drop-down menu to the right of the map.
    • NOTE: To determine the AQI Average value, find the average between the two numbers of the AQI range.  For example, Green has a range of 0 50, with an average, of 25.
  3. In another browser window, or another computer, access the Weather Underground site, and collect the weather information for Newark NJ For this lesson, gather the Maximum Temperature, the Wind Speed, and Events for each of the seven days. For this information, scroll down the page and find History and Almanac on the left side of the page below Maps and Radar..

Dates and Location: July 16 - July 21 for Trenton, NJ
Example below:

Date AQI Color Air Quality Max. AQI Value AQI Ave. Value Max. Temp. Wind Speed Events
July 16 Green Good 50 25 95 F 8 mph None


  1. Make the following three bar graphs using the data in your table. Ask your teacher for assistance if you are unsure how to make the graphs, or click here for examples:
    1. Ozone v. Time
    2. Temperature v. Time
    3. Wind Speed v. Time

PART 2: Analyze the Data

  • After you have completed the graphs, use the data in the table and the graphs to answer the questions on the Student Worksheet.
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