fairfolio
Saved Projects

A Simplified Method to Measure Ground-Level Ozone in the Atmosphere

ISEF · 2020 Earth and Environmental Sciences

Singley, Mattie, Stratman, Emily · Brush High School

Is this your project?

Overview

This project in its present form is the result of a simplified method to analytically measure ground-level ozone in the atmosphere in our rural town at low temperatures. The researchers hypothesized that at the peak heat of the day, at locations such as gas stations, factories, and parking lots full of idle cars will have higher ozone concentrations than those at any other time of the day at any other location. The researchers built a homemade vacuum pumping system to bubble air from ground-level locations through a diluted potassium iodide (KI) solution. The researchers took readings from five different locations that included a gas station, factory, house in the country, house in town, and our high school parking lot. The researchers took readings at three different times for each location to determine the relationship that temperature has on ozone concentrations. A diluted starch solution was added to and then acidified each and placed them into zero-degree Celsius ice baths. After icing for 10 minutes, they were removed from the ice and placed in a cuvette to set at 25 degrees Celsius or room temperature before data was collected using a spectrophotometer. Ozone concentrations were highest at 12:00 pm for each location and lowest at 8:00 am. The researchers concluded that the gas station, high school parking lot, and the beet factory had the highest concentrations of ozone at the peak heat of the day because of the heavy air waste produced by car traffic and factory pollution.

Working on something like this? See what's been done and what's still open.

Competition history

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Report a problem

Source: Regeneron International Science and Engineering Fair

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google