Rubber bands have been used in at least one publicized home experiment to allow for global testing of ozone pollution. Titled GORP, for Global Ozone Rubber Participant, users can see the effects of ozone pollution near their own homes or places of employment. Rubber bands were chosen due to their availability and low cost. In the experiment, two rubber bands are used to each suspend two small water bottles. One is suspended outdoors, protected from the sun and rain, and one indoors. A data recording sheet is placed behind the setup and taped to a wall. The user then marks the changes in the height of the water bottles as the natural rubber degrades from ozone pollution. Since both water bottles are nearly the same mass, the force on each rubber band is similar, and the spring constant of each rubber band is compared via ratio of the water bottle relative extensions on the rubber bands. Typically, the home experimenter sees relatively little damage to the indoor control compared to the outdoor setup. After a week or two, the home experimenters seal both rubber bands into a small plastic bag and mail them, along with their data sheets to the GORP researchers. Researchers examine loss of elasticity versus data and location. The GORP study was originally implemented during the SARS-CoV-2 pandemic as a means to test for reduced ozone pollution during the quarantine.