WeeWX is a free, open source, software program, written in Python, which interacts with your weather station to produce graphs, reports, and HTML pages. It can optionally publish to weather sites or web servers. It uses modern software concepts, making it simple, robust, and easy to extend. It includes extensive documentation.

WeeWX runs under most versions of Linux, as well as macOS, *BSD, and Solaris. Many users are running on the Raspberry Pi. The images on this page and throughout this web site are from sample stations running WeeWX.

Thousands of stations throughout the world run WeeWX, many of whom have opted-in to be shown on our station map.

Github: https://github.com/weewx/weewx

We build professional grade earth monitoring solutions that anyone can use to measure ground motion and infrasound activities.

Hella expensive, though.

The OpenAQ Community harmonizes disparate air quality data from across the world so that citizens and organizations can fight air inequality more efficiently. The data is captured from multiple sources and made accessible to all through our open-source platform.

Bulk upload: https://upload.openaq.org/

An air quality monitoring network built on a new generation of Internet of Things sensors. Using a new generation of laser particle counters to provide real-time measurement of PM1.0, PM2.5 and PM10. PurpleAir sensors are easy to install and only require a power outlet and WiFi. They use WiFi to report in real time to the PurpleAir map. Sells air quality sensors that are pretty expensive. Don't know if it'd be possible to upload data from other kinds of sensors.

Account creation requires authenticating with a Google account only.

They have a JSON API but it's read-only and just a straight dump from their database: https://www.purpleair.com/json

https://www2.purpleair.com/community/faq#hc-access-the-json

There is also a Thingspeak API: https://www2.purpleair.com/community/faq#hc-thingspeak-api

They also seem to have a REST API but you need an API key and ChannelID. Not a big deal, really.

I don't know if this service is suitable for my purposes.

CanAirIO is a citizen science project using mobile and static sensors
to measure air quality with cell phones and low-cost technology.

A site where people study information about themselves - genomics, text, social networks - and share their techniques for doing so. I'm not entirely sure I'd feel safe uploading anything here, but at the very least some techniques could be learned from it.

A crowdsourced open environmental data project. volunteer centered. Measures airquality, radiation, and environmental health.

website for a project that teaches you how to build a weather monitoring station using a raspi and a couple of sensors. citizenscience environment howto FOSS

Another crowdsourced radiation monitoring website.