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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
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
Shade is often understood as a luxury amenity, lending calm to courtyards and tree-lined boulevards, cooling and obscuring jewel boxes and glass cubes. But as deadly, hundred-degree heatwaves become commonplace, we have to learn to see shade as a civic resource that is shared by all. In the shade, overheated bodies return to equilibrium. [...] Shade is thus an index of inequality, a requirement for public health, and a mandate for urban planners and designers. — Places Journal
In this longform piece, writer Sam Bloch delves into the history of how shade has served as an index of inequality in the urban design of Los Angeles, and how the city (and perhaps other locations) should learn to consider shade as an important public health requirement. “People living in poor... 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
It might sound like a plot cooked up by a cartoon villain, but a city in southwestern China is aiming to launch into space an artificial moon that could replace streetlights by bathing the ground in a “dusk-like glow.”
[...] the satellite’s mirror-like exterior would reflect sunlight down to Earth, creating a glow about eight times brighter than the moon. The artificial moon, which he said would orbit about 500 kilometers above Earth, could save $174 million in electricity from streetlights.
— NBC News
The capital of China's Sichuan province, Chengdu, could have its own illumination satellite 'moon' up in the skies by 2020, according to the People's Daily. Light pollution, and its documented health effects on humans and nocturnal wildlife, doesn't seem to be much of a concern to the officials... 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
The American Medical Association (AMA) has just adopted an official policy statement about street lighting: cool it and dim it.
The statement, adopted unanimously at the AMA's annual meeting in Chicago on June 14, comes in response to the rise of new LED street lighting sweeping the country. An AMA committee issued guidelines on how communities can choose LED streetlights to "minimize potential harmful human health and environmental effects."
— CNN
There are two basic issues at hand. First, new, "white" LED lighting, which have a color temperature of between 4000K and 5000K, can cause discomfort and glare. This is because the light is concentrate and has high blue content, which can cause severe glare and force pupillary constriction... View full entry
Sentinel Peak Resources, which took over the roughly 1.1-acre site in December, now believes that affordable housing is the “best beneficial use” for the land [...] Neighborhood leaders said they were interested in closing and re-purposing the site, but are awaiting more details. They stressed that regardless of any plans, they still want the city to pursue their concerns about violations at the site, which Sentinel Peak Resources has so far brushed off. — Los Angeles Times
According to the L.A. Times, “No official plan has been drafted and details are scant, but [L.A. City Council President Herb] Wesson said he was ‘unbelievably excited’ about the idea, arguing it could pave the way to convert other local drilling sites.”But converting the site — which is... View full entry
The wide-ranging efforts include improving indoor air quality and even increasing activity levels of building occupants. Allen and colleagues at the Harvard T.H. Chan School of Public Health have defined nine foundations for healthier buildings, such as better water quality, reducing noise, regulating temperature, and maximizing light. — National Geographic
As part of the Urban Expeditions series, Brian Howard explored some of the latest trends in green design, which go far beyond energy and water efficiency to issues of public health/wellness. View full entry
When the Government Hospital for the Insane opened in Anacostia in 1855, the asylum’s supervising physician, Charles Nichols, predicted that 50 percent of the mentally ill people treated there would make a full recovery. What made him so confident? The building. He’d designed it in accordance with the most cutting-edge theories of the day, which called for sunny, well-ventilated asylums in the countryside — the Washington Post
The "Architecture of an Asylum: St. Elizabeth's 1852-2017" is a new exhibit opening at the National Building Museum this weekend. It looks at past theories that contended that design could have a major and healing effect on mental illness. Fresh air was encouraged, as was scattering... View full entry
The worst flooding in two decades has struck Peru, causing a death toll of 72 people since the beginning of the year. The floods are caused by a series of “highly unusual rains” produced by the warming of surface waters along the country’s northern coasts. The waters have inundated hospitals... View full entry
“More and more people are living and working in high-rises and office blocks, but the true impact of vibrations on them is currently very poorly understood,” states Alex Pavic, Professor of Vibration Engineering at the University of Exeter.“Humans spend 90 per cent of their lives in... View full entry
