Compare projects
Project comparisons allow you to view any selection of projects side by side just like they're shown on regular categories or in search results. You can try out an example or start yourself by adding a library to the comparison via the input below. You can also easily share your current comparison with others by sending the URL of the current page.
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Air Quality is an air pollution API that reports particulate pollution levels and health recommendations for any city or zip code. Look up PM2.5 and PM10 concentrations to check current air conditions; paid plans add ozone, toxic gases, and EPA index scores.
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