Sandy McFadden

This is a great plugin which will help you keep track and brag about the progress you make as you start losing weight or getting healthy. 
You get to decide which measurements you want to keep track of and you can change them at any point.

Health Progress

Health Progress will add a widget and shortcode to your site which will display your starting measurements and progress as you get healthy.

patrol220

Air Quality Plugin shows air quality data from closest detector of localization which you will give in settings of plugin. In plugin settings localization must be provided to determine which detector will be chosen. You can set Google Maps API key in settings to make that thing easier. After giving Google Maps Api key you will get new input field where you can specify your localization. It can be name of the city, but in your city there can be multiple air quality detectors so for more accurate results you should put name of the street. 
Plugin is using waqi.info JSON API to get data about air quality.
In settings administrator have option to let every user to set localization from Settings -> AQP Settings what they want.
Plugin additionaly displays some info about weather from detector if there is any given. You can disable it from administrator options.

Air Quality Plugin

This plugin was made mainly to display air quality from closest air pollution detector

Health Progress vs Air Quality Plugin