PurpleAir Blog | Making Air Quality Accessible For All
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Why Are Winter Wildfires Increasing in Frequency?
Warmer temperatures in July, August, and September used to pair with dry winds to constitute the fire season. But with the changing temperature trends across the globe, wildfires are no longer restricted to a specific season. -
What to Know About India’s Crop Burning Season
Every year, crop burning season drastically affects the air quality in India all across the country. Learn more about crop burning, why it's harmful to the environment, and what can we do to address the issues in our society. -
Fetal Toxicity: How Particle Pollution Affects Pregnant Women
It's no secret that particle pollution is bad for your health. But what you may not know is that it can also be harmful to pregnant women and a fetus as it develops. Learn more about the latest research here. -
All You Need To Know About Dew Point And How It Differs From Humidity
So, where does condensation come from? The science behind this process is in two words: dew point. This article aims to explain the dew point phenomenon, its measurement, the benefits of monitoring its levels, and how it differs from humidity.
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NASA Study Finds A Decrease In Ship Tracks In 2020 – What Are The Possible Causes?
Recently, NASA conducted a study and shared satellite observations and images from 2020, showing lesser-than-usual sulfur-containing tracks from the North Pacific to the Mediterranean. -
Asbestos: What It Is and What You Need to Know
Asbestos is a naturally occurring substance that was once commonly used in building materials. It is now known to cause serious health problems, so it is vital to be aware of it and take steps to avoid exposure. This article will discuss what asbestos is, where it can be found, and the health risks associated with it. -
Bangladesh Air Quality Fact Sheet 2023
Bangladesh is currently the world’s most polluted country, with air quality at levels that are dangerously low for human health. With its streets full of pollutant-heavy activities, such as industrial factories, dust burning, and mega project sites, residents in cities such as Dhaka are feeling the burden by having to face unprecedented levels of air pollution. -
United Kingdom Air Quality Fact Sheet
The UK is one of the few places in the world that has been successfully decreasing overall levels of air pollution over recent years. In the past decade alone, the country has effectively cut its SO2 gas emissions by almost half. In 2019, the total emissions were nearly 300Gg less than in 20102. -
India Air Quality Fact Sheet 2023
India’s growth in recent decades has resulted in an exponential increase in the number of vehicles and industrial factories emitting pollutants into the atmosphere. As a result, the air quality has been worsening, with big cities seeing some of the highest levels of air pollution in the world. Particulate Matter (PM) concentrations have increased over the past decade and have since become a grave health concern for millions in the country. -
Long-term Exposure to Air Pollution: Does it Affect Mortality?
By looking at some case studies around the world, we can get a better idea of this relationship and whether we need to take caution around our exposure to airborne pollutants, such as Particulate Matter (PM2.5, PM10). -
China Air Quality Fact Sheet 2023
The past two decades of industrial expansion in China have resulted in an exponential increase in air pollution, decreasing the nation’s air quality. Learn how these recent spikes have resulted in health concerns that have subsequently decreased the average life expectancy for residents. -
Tracking Particulate Matter: Federal Reference Method (FRM) or Federal Equivalent Method (FEM)?
With growing awareness of the potential impacts and effects of air pollution, federal agencies are strapping down and taking more diligent measures to track ambient particle concentrations. The US Environmental Protection Agency (EPA) is constantly redefining safe parameters of the national ambient air quality standards (NAAQS). One of the most concerning airborne pollutants tracked is fine particulate matter, particularly Particulate Matter 2.5 (PM2.5).
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