Measure air pollution in your home or backyard with a DustDuino

This week, the World Health Organization (WHO) took a major step by announcing that air pollution is carcinogenic to humans.

WHO also announced they are considering particulate matter, a major component of indoor and outdoor air pollution, as carcinogenic to humans as well.

International Agency for Research on Cancer announced today: outdoor #airpollution is leading environmental cause of #cancer deaths
— WHO (@WHO) October 17, 2013

The International Agency for Research on Cancer (IARC), a special unit inside WHO tasked with promoting international collaborations on cancer research, reached that conclusion after reviewing more than 1000 scientific papers on the carcinogenicity of air pollutants.

Air pollution and particulate matter will be included in IARC's Monograph, which is an encyclopedia of known carcinogens. Particulate matter will be classified as a Group 1 carcinogen, along with tobacco smoke and asbestos.

In an IARC press release [1], the Deputy Head of the Monographs Programme, Dr. Dana Loomis, said that the group's goal was to "evaluate the air everyone breathes rather than focus on specific air pollutants."

"The results from the reviewed studies point in the same direction: the risk of developing lung cancer is significantly increased in people exposed to air pollution," he said.

This finding elevates the urgency to clean up the air, both outdoors and indoors. But how does one find out the condition of the air in the first place? How healthy is your air?

Drones, journalism, and the peak of inflated expectations

It's a story that's been repeated time and time again with emergent technology. Researchers publish some new breakthrough, and the press grabs hold of the news release and begins extrapolating stories about how the new tech could revolutionize our lives. Expectations build as ideas bounce within the media echo chamber, pitchmen evangelize audiences at the trendy tech conferences, and venture capitalists make power plays in the market.

Everyone wants a piece because the sky is the limit, and the sky is the limit because everyone wants a piece.

Products finally hit the market, and eventually, reality sets in. Like the doomsayers who predict apocalypse time and time again, the prophesied miracles fail to materialize. The technology is immature. Deliverables fail to match objectives. Most importantly, the technology was overvalued, and an adjustment takes place.

This "hype curve" -- rising expectations, peak interest, and curbed enthusiasm -- doesn't happen to every piece of technology that comes around. But this bubble does happen with surprising regularity. Every year, Gartner, a tech research corporation, produces a report that attempts to identify where various technologies are riding on this bubble.

Gartner released its latest report, "2013 Hype Cycle for Emerging Technologies," last month. In it, the company prognosticates that drones and other unmanned technologies are coming up to that peak. At that point, the unmanned systems sector might be in for some pain.

Understanding air pollution with a simple dust sensor

Outdoor air pollution, in the most extreme cases, can be immediately identified even without any special training. It casts a haze over cities, collects on streets and buildings, and provides dramatic fodder for the news. Even when the air pollution isn't actually visible, we can smell when something isn't quite right.

I previously wrote about how difficult it can be to obtain basic environmental data, and how government budget cuts are threatening air monitoring networks in several states. It now appears that other countries are making hard decisions about which monitors to keep, and which monitors to shut down. The Guardian reported recently that up to 600 air quality monitors, including monitors for nitrogen dioxide and particulate matter (PM), could be shut down across the United Kingdom.

Yet for all the attention the media pays to outdoor pollution, people spend only about 1 to 2 hours outdoors (and that's only in the pleasant summer months) according to one University of Newcastle study. According to the EPA, we spend about 90 percent of our time indoors. We spend the vast majority of our time indoors, so it makes sense monitor pollution in the home.

Indoor Air Pollution (IAP) is an especially big problem in developing countries, where 60 to 90 percent of households still rely on coal and wood for heat and food preparation. About 36 percent of acute lower respiratory infections and about 22 percent of chronic obstructive pulmonary disease (COPD) in the developing world are caused by IAP (pdf). In one study of women in China, researchers found that a 10 μg/m³ (microgram per cubic meter) increase in PM₁ (ultrafine particles smaller than one micrometer) was associated with 45 percent increased risk of lung cancer.

IAP isn't just a concern in developing and BRIC nations, though. Similar problems exist for the rural poor in the US and Canada, where indoor pollution exceeds the World Health Organization air quality guidelines in up to 80% of homes. As in BRIC nations, these homes rely greatly on burning organic fuels.

Air quality at home can be an issue even for homes that don't burn wood or coal. Indoor air pollution can come from "molds, bacteria, viruses, pollen, animal dander and particles from dust mites and cockroaches," according to the American Lung Association.

Indoor air pollution ranks among the top five environmental risks to public health, the EPA says. Indoor pollution levels may be two to five, and sometimes 100, times higher than outdoor pollution.

All that makes the indoors a great place to put a dust sensor.

IEPA is silent on request for data, emails surrounding large tire fire

When a supply of one million tires caught fire in Hoopeston, IL, there were no environmental monitors to track pollution in the community.

IEPA responded to the event along with firefighters, and has been keeping tabs on pollution ever since. With the fire extinguished, IEPA's primary concern has been shifted to the tire dust kicked up during cleanup.

From university research, we know an uncontrolled tire burn releases cancer-causing chemicals and mutagens (pdf). But it's been 61 days since the fire began, and the public is still in the dark on pollution figures from this massive fire.

Even with a ton of drone regulations, there was a ton of innovation at the SUSB Expo

An MLB Company representative shows the company's Super BAT's camera gimbal system to an audience member during the SUSB Expo, in San Francisco, CA.

It's not very often you get the chance to watch the birth of a multi-billion dollar industry firsthand. But if we are to believe the Association for Unmanned Vehicles and Systems International (AUVSI) economic report, which estimates the unmanned aviation industry should reach $82 billion by 2025, that's exactly what happened at the first-ever small business expo for unmanned aircraft, the SUSB Expo, in San Francisco.

"It's like being in Steve Job's garage," said Agriflight's Bruce Parks, as reported by Robohub's Andra Keay.

Hot spots linger during Hoopeston tire fire cleanup, FOIA filed

Firefighters attempt to extinguish the tire fire at J&R Used Tire Service in Hoopeston, Ill., on June 19. Photo by Dan Johnson.

State environmental officials are continuing to monitor the site where a massive tire fire broke out 43 days ago, citing new concerns about dust during the cleanup process.

According to the Champaign News-Gazette, officials from the Illinois Environmental Protection Agency (IEPA) say the site has dried out since firefighters poured hundreds of thousands of gallons of water on the tire fire at J&R Used Tire Service in Hoopeston, Ill. on June 19. This is creating an issue for "tire dust," which can not be kept down with more water.

Michigan also faces cutbacks in air quality monitoring, risks violating federal requirments

Illinois isn't the only state facing cutbacks in environmental monitoring due to state and federal budgets. In its annual plan to monitor air quality, Michigan also revealed it is having difficulties keeping its network of air monitors intact.

Unlike Illinois, however, Michigan's cutbacks threaten the state's ability to meet federal laws for air monitoring.

"The MDEQ (Michigan Department of Environmental Quality) cannot implement all of the new monitoring requirements described above without new funding and a concomitant reduction in other monitoring requirements due to financial and staffing limitations," the state's environmental agency wrote in its 2014 ambient air monitoring network review (PDF).