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In an effort to track the impacts, Earther assembled an interactive map to explore the changes in air pollution not just in the U.S. but globally. The map runs on Google Earth Engine and uses data collected by the European Space Agency’s Sentinel-5P satellite, which circles the Earth capturing various types of data. It includes four snapshots from December 2019 through March 20, 2020. The Sentinel satellite data shows nitrogen dioxide, which is a handy proxy for human activity. — Gizmodo
Brian Kahn and Dhruv Mehrotra of Earther highlight a recently launched pollution visualizer their team has assembled that highlights the stark changes in human activity across the world in the wake of COVID-19-imposed economic and social disruptions. The authors interview Barbara Dix... View full entry
Canberra has experienced its worst air quality on record, as bushfire smoke became trapped by atmospheric conditions and residents were told to stay indoors and brace for more smog in the coming days.
The ACT’s acting chief health officer, Dr Paul Dugdale, said the smoke was the worst since the 2003 bushfires and was “certainly the worst” since air quality monitoring started in the city 15 years ago.
— The Guardian
According to The Guardian’s reporting, Air Quality Index (AQI) readings in Canberra city reached 3,463 on Wednesday afternoon, with readings above 200 considered to be hazardous. According to reports, the fires have burned at least 14.6 million acres around the country so far with... View full entry
The samples he collects will help scientists better understand how the massive increase in seasonal wildfires burning through residential areas might be affecting our health. Where smoke once contained the remnants of only biomass (trees and other organic matter), fires are now burning up homes—structures that contain thousands of synthetic chemicals, paints, plastics, and metals that smolder and combust into tiny particles. — National Geographic
Air pollution worsened in the United States in 2017 and 2018, new data shows, a reversal after years of sustained improvement with significant implications for public health.
In 2018 alone, eroding air quality was linked to nearly 10,000 additional deaths in the U.S. relative to the 2016 benchmark, the year in which small-particle pollution reached a two-decade low, according to researchers at Carnegie Mellon University.
— The Washington Post
The Washington Post reports that "concentrations of the pollutant have risen about 5.5 percent since 2016," and points out several contributing factors that the Carnegie Mellon study identified: increased natural gas use and vehicle traffic, risen severity and frequency of wildfires, and the... View full entry
In the height of daytime, the sky suddenly blackened, and day became night in Sao Paulo.
Sure, smog is bad in the Western Hemisphere’s largest city, where traffic jams can stretch for dozens of miles. But not this bad. What was going on? Was the end near?
— The Washington Post
A combination of meteorological events paired with smoke that had traveled hundreds of miles from intense forest fires in remote parts of the Amazon caused a period of sudden midday darkness in the most populous city in the Western Hemisphere on Monday, reports The Washington Post. Meanwhile on... View full entry
Cars and trucks on one of Europe’s most notoriously congested and polluted urban highways would not only be obliged to drive more slowly, they’d have less room to do it: The number of beltway lanes open to all traffic would also be slashed from eight to six. One lane will be reserved for public, emergency, and zero-emissions vehicles. The other one is to be devoted to trees. — CityLab
Paris officials are making plans to redesign the traffic lanes for the city's 22-mile-long ring road, Boulevard Périphérique. A recent report calls for retrofitting the eight-lane highway as part of a wider effort to crack down on car usage across the city. Since taking office in 2014, Paris... View full entry
A colourful mural of a 35m-tall tree in Mexico City is one of three environmentally friendly new public works made using Airlite paint, which purifies polluted air in a process similar to photosynthesis.
[...] the mural aims to increase oxygen levels in one of the western hemisphere’s most polluted cities, where ozone concentration levels remain high despite government regulations on fuel and cars.
— The Art Newspaper
Image courtesy of Boa Mistura."Airlite paint chemically reacts with pollutants in the air, turning them into inert compounds," reports The Art Newspaper. "The roughly 1,000 sq. m mural should neutralise the same amount of pollution created by around 60,000 vehicles a year."The artists responsible... View full entry
For 20 years, the American Lung Association has gathered and analyzed data from official air quality monitors creating its annual "State of the Air" report. It's been reported by the association that more than four in ten people currently live in areas where pollution levels are too dangerous to... View full entry
House Observations of Microbial and Environmental Chemistry—was the world’s first large-scale collaborative investigation into the chemistry of indoor air. [...] The experiment’s early results are just now emerging, and they seem to show that the combined emissions of humans and their daily activities—cooking, cleaning, metabolizing—are more interesting, and potentially more lethal, than anyone had imagined. — The New Yorker
In this New Yorker piece, writer Nicola Twilley observes one of the experiments of HOMEChem, who investigates the atmospheric chemistry of our indoor environments and how everyday activities can greatly affect its air quality. “Dozens of the chemicals measured by the HOMEchem team are known to... View full entry
Shit, I Smoke! was created by Brazilian-born designer Marcelo Coelho and Paris-born app developer Amaury Martiny in just a week, after they read a study that analyzed air pollution and its equivalent to cigarette smoking. [...] Using the formula in [the study], [the app] uses live pollution data from hundreds of air quality stations in cities around the globe and converts the station’s PM2.5 number into the number of cigarettes being inhaled by a person in real time. — Citylab
“For both Coelho and Martiny, the app isn’t only a useful tool to inform users about their city’s air quality; it also makes this information more accessible and easier to comprehend.” View full entry
An experimental tower over 100 metres (328 feet) high in northern China – dubbed the world’s biggest air purifier by its operators – has brought a noticeable improvement in air quality, according to the scientist leading the project, as authorities seek ways to tackle the nation’s chronic smog problem. [...]
The head of the research, Cao Junji, said improvements in air quality had been observed over an area of 10 square kilometres (3.86 square miles) in the city over the past few months [...].
— South China Morning Post
Now that the experimental smog-eating tower is up and running in the city of Xian, authorities are hoping to build much bigger, scaled-up versions in other Chinese cities soon: "A full-sized tower would reach 500 metres (1,640 feet) high with a diameter of 200 metres (656 feet)," the South China... View full entry
Beijing will suspend construction of major public projects in the city this winter in an effort to improve the capital’s notorious air quality, official media said on Sunday, citing the municipal commission of housing and urban-rural development.
All construction of road and water projects, as well as demolition of housing, will be banned from Nov. 15 to March 15 within the city’s six major districts and surrounding suburbs, said the Xinhua report.
— Reuters
"China is in the fourth year of a 'war on pollution,'" Reuters reports, "designed to reverse the damage done by decades of untrammelled economic growth and allay concerns that hazardous smog and widespread water and soil contamination are causing hundreds of thousands of early deaths every year." View full entry
In the unofficial category of "Creative Pollution Solutions," the Dutch firm Studio Roosegaarde is angling to be the winner: the firm has several projects that introduce innovative solutions to existing infrastructural challenges. First up, in partnership with bike-sharing firm OFO, the studio... View full entry
Birds fly in and out of the eight-storey "Green Office Building" in Shenzhen, China, because a third of its walls are completely open to the air. It's a clever natural design that enables the building to stay cool without air conditioners.
Across town, in a vast campus known as the "Low Carbon Park", mist is sprayed into the air to cool the streets down and remove dust.
— The BBC
Experiments like these are appearing across China's cities, as part of a devolution of power designed to clean up smoggy air and meet energy targets to tackle climate change. View full entry
The Chinese capital issued its highest red fog alert for a second day on Wednesday, keeping highways closed in and around the city which is already under a smog alert after weeks of choking winter pollution.
China's weather bureau warned of visibility of less than 50 meters in some areas, leading many airports to cancel flights.
— Reuters
Air pollution is one of the most significant public health issues facing major cities around the world. Find out more here:Working indoors not enough to protect you from air pollution, according to new studyThese are the most-polluted cities in the USReducing Turin's smog with free public... View full entry