Hacker News with Generative AI: Air Quality

Installing air filters in classrooms has surprisingly large educational benefits (2020) (vox.com)
An emergency situation that turned out to be mostly a false alarm led a lot of schools in Los Angeles to install air filters, and something strange happened: Test scores went up. By a lot. And the gains were sustained in the subsequent year rather than fading away.

Education, Air Quality, Public Health, Research, Los Angeles

306 points by tangjurine 3 days ago | 141 comments

The U.S. pulled the plug on air quality monitoring. We're here to reboot it (airgradient.com)
All around the world air quality monitoring data is becoming unavailable as the U.S. government has stopped publicly sharing their air quality data from over 80 embassies.

Air Quality, Environmental Data, Government Data, Politics, Technology

12 points by ssuds 3 days ago | 0 comments

London air pollution down since Ulez extended to outer boroughs, study finds (theguardian.com)
People in London have been breathing significantly cleaner air since the expansion of the ultra low emission zone (Ulez), a study has found.

Air Quality, London, Environmental Policy, Urban Planning

7 points by zeristor 27 days ago | 0 comments

Beyond the numbers: PM2.5 is not PM2.5 (airgradient.com)
This article is part of a series, where we explore the hidden complexities of PM2.5 — tiny airborne particles that impact air quality and health. We will uncover the ambiguities behind its measurement, the challenges in assessing health risks, and the surprising insights that emerge. Each article will tackle a different aspect of PM2.5, shedding light on its hidden dilemmas and unanswered questions. Today’s article discusses the variety of different airborne particles.

Air Quality, Health, Science, Environment

5 points by quercusa 59 days ago | 0 comments

Air quality map of Kigali, Rwanda (open-seneca.org)
ΔPM2.5 above the baseline [µg/m³]-5-2.502.55

Air Quality, Rwanda, Environmental Data, Data Visualization

23 points by pppone 62 days ago | 3 comments

The Right to Repair and Air Quality Monitors (airgradient.com)
We’ve talked a lot about open hardware and our commitment to it here at AirGradient, and it’s not just a philosophical stance for us. It’s deeply connected to a principle that I think is becoming increasingly important: the right to repair.

Open Hardware, Air Quality

7 points by MilnerRoute 96 days ago | 0 comments

Show HN: Web app that shows how good the air quality is in Chile (vercel.app)

Air Quality, Chile, Web Applications

16 points by iwayato 99 days ago | 9 comments

How Accurate Is the Sensirion SGP41 TVOC Sensor? (airgradient.com)
VOCs (volatile organic compounds) are a large group of organic chemicals that easily evaporate into the air at room temperature.

Sensors, Air Quality, VOCs

16 points by ahaucnx 110 days ago | 9 comments

Better air quality is the easiest way not to die (2021) (dynomight.net)
What do you worry about more: Getting exercise, eating vegetables, or the air you breathe?

Air Quality, Health, Environment

15 points by Gaishan 117 days ago | 12 comments

New tiny air-quality sensor you can put in your pocket or clip anywhere (lightyearinc.com)
Know the air you breathe wherever you go.

Air Quality, Sensors, Wearable Technology, Health

5 points by ck2 172 days ago | 2 comments

Low Cost CO2 Sensors Comparison: Photo-Acoustic vs. NDIR (airgradient.com)
This article has been updated in September 2024 with new information about the Infineon photo-acoustic sensor as well as the performance of photo-acoustic sensors outdoors.

Sensors, CO2, Air Quality, Technology, Comparison

227 points by todsacerdoti 192 days ago | 76 comments

Helsinki Daycare installed air purifiers, kids stopped getting sick as often (fastcompany.com)
Any parent who’s had to deal with a coughing or congested toddler knows how day cares can be a breeding ground for illness. But when a few day cares in Helsinki installed air purifiers, children’s illnesses dropped by 18%.

Health, Children, Finland, Air Quality, Daycare

9 points by anjel 201 days ago | 1 comments

Study: Air purifier use at daycare centres cut kids' sick days by a third (2023) (yle.fi)

Air Quality, Childcare, Public Health, Science

433 points by mji 220 days ago | 265 comments

Air Quality Monitors Compared: AirGradient One vs. Airthings (airgradient.com)

Air Quality, Consumer Products, Reviews, Comparison

76 points by ahaucnx 228 days ago | 56 comments

Smoke Forecast – Real time map of fires and their smoke with forecast (firesmoke.ca)

Smoke Forecast, Wildfires, Air Quality, Mapping, Canada

33 points by LinuxBender 241 days ago | 4 comments

Ask HN: Best way to remove CO2 in a bedroom? (ycombinator.com)