Apps are helping people avoid air pollution amid record wildfires, rising temperatures
Air quality in the United States and Europe improved over the last decade thanks to stricter environmental regulations, but intensifying wildfires raise new air pollution concerns.
The National Interagency Fire Center reported that, as of August 8, there were 107 large active fires that had burned more than 2.2 million acres domestically across 15 states so far this year. In Europe, wildfires in Greece and Turkey are raging amid record heat waves now as well.
As a result, more people are turning to mobile apps to understand when air quality is better or worse, wherever they may be. These apps use a mix of data from government-operated satellites, or weather, fire and ambient air quality stations, as well as sensors and systems run by private sector entities. Some are even crowdsourced from relatively affordable air quality sensors sold by companies such as PurpleAir and IQAir.
Air quality apps
According to senior mobile insights analyst Jonathan Briskman of Sensor Tower, the top-rated apps for outdoor air quality monitoring in the U.S. between January 2020 and July 2021 have been: AirCare, AirVisual, and South Coast AQMD, based on ratings from the App Store, and Google Play.
Here’s what those three apps do:
- AirCare, made by developers in Northern Macedonia, is available for iOS and Android mobile devices, including iPhones, iPads, Apple Watch and Huawei smartphones, among many others. Tiers include a free, ad-supported version, a 99 cents ad-free version, and at the premium level, a $14.99 annual subscription for a pro-version. The app includes kid-friendly air pollution information, charts and maps that show pollutant levels derived from government-run sensors and stations, alongside volunteers’ PurpleAir and other sensors throughout the U.S., Europe and Australia. In some major metro areas, the app also tracks ultra-violet and pollen levels.
- AirVisual, made by the Swiss air quality company IQAir, tracks air pollution in more than 10,000 cities and 80 countries drawing on data from tens of thousands of sensors, some positioned at U.S. embassies overseas. The company’s free mobile apps are also ad-free and available for iOS and Android devices. Besides real-time maps that show levels of six different types of major pollutants, IQAir’s AirVisual and mobile website provide seven-day air pollution and weather forecasts, along with air pollution-related news and health information. The apps can pair with the company’s own sensors, including the portable AirVisual Pro sold for around $269.
- South Coast AQMD, is a free and ad-free app run by the local air pollution agency in Southern California of the same name and tracks air pollution across Orange County, Los Angeles, Riverside and San Bernardino, specifically. It features real-time and forecasted air quality and weather conditions, and maps that show where drivers can charge their electric vehicles or find other non-traditional fueling stations. It also includes information about upcoming local events and political hearings related to air quality issues to encourage community participation. The app is available in both English and Spanish for Apple and Android devices.
The five most popular air quality apps in the U.S., based on installs since the start of 2020, according to Sensor Tower included two of those top-rated apps, AirVisual (from IQ Air) and Air Care, as well as the U.S. Environmental Protection Agency’s app AirNow, an app from venture-backed startup Breezometer that shows air quality, pollen and active fire data, and an app called Oregon Air developed for the Oregon Department of Environmental Quality.
Use of these apps, and new installs are often driven by regional events. As of August 8, 2021 there were 16 large active fires searing through Oregon according to the NIFC.
How air pollution impacts health
Air quality monitoring and measurement are critical for public health, says Yanelli Nunez, a postdoctoral research scientist at Columbia University’s Mailman School of Public Health.
She notes that robust studies have shown that air pollution contributes to lung cancer, chronic obstructive pulmonary disease, and lower respiratory infections, and even impacts mortality, pregnancy outcomes and cardiovascular disease.
Nunez works in an environmental health sciences laboratory with Marianthi-Anna Kioumourtzoglou. Their research has also found long-term exposure to air pollution can affect the nervous system and may influence functions such as memory or cognitive capabilities.
The scientists wrote in an e-mail to CNBC: “Americans living in poor air quality areas tend to be people of color or low-income communities. We are finally starting to pay more attention to these issues, which hopefully will lead to change. The air pollution composition is also changing.”
In one example, greenhouse gas emissions from transportation declined in New York City from 2014 to 2017, while commercial cooking emissions rose.
With increased wildfires, the scientists wrote, “The sources and composition of the air pollution mixture that we are experiencing could differently impact our health, so we need to better understand source-specific effects, especially for these newly prominent sources.”
Indoor air matters, too
While outdoor air quality is important, society doesn’t talk or do enough about indoor air quality, said Richard Corsi, UC Davis’ incoming dean of the college of engineering, currently a professor and dean at Portland State University.
Using pre-pandemic numbers, Corsi explained that the average American would spend almost 70 out of 79 years of their life domiciled inside of buildings. “Because we spend so much time indoors, even our exposure to pollutants of outdoor origin is dominated by what we breathe there, especially in our homes,” he said.
Pollutants of outdoor origin which come from the likes of internal combustion engine vehicles, photochemical smog, refineries and wildfires can get into homes and buildings when doors and windows are opened, when heat and air conditioning systems are used, or through other cracks in the building envelope.
Consumer apps and devices today don’t give users an absolute, precise measurement down to micrograms per cubic meter of a given pollutant, Corsi noted. But they’re very valuable for spotting trends and relative changes in air quality.
Sensors set up indoors can work well to check whether protective measures are working to improve the air inside of a house, school or other building.
Especially during wildfire season, Corsi said, some other simple actions that can protect or improve air quality indoors include: wet-mopping floors and wiping surfaces so pollutants don’t accumulate, using HEPA or high-efficiency particulate air filters, and increasing the MERV or minimum efficiency reporting value of filters in central air systems in a house.
Keith Rabois of Khosla Ventures attends Day 3 of TechCrunch Disrupt SF 2013 at San Francisco Design Center on September 11, 2013 in San Francisco, California.
Steve Jennings | Getty Images
Opendoor, the online real estate platform that’s seen a surge of retail investor interest in recent months, said Wednesday that it’s tapped former Shopify executive Kaz Nejatian as CEO and named co-founder Keith Rabois as chairman.
The stock popped 30% in extended trading, and is now up more than fifteenfold since hitting its record low in June.
Rabois, a partner at Khosla Ventures, helped launch Opendoor in 2014, along with a group that included Eric Wu, who served as the first CEO before stepping down in 2023. Wu is rejoining the board as part of Wednesday’s announcement.
The moves come after Carrie Wheeler last month resigned as Opendoor’s CEO following an intense pressure campaign from investors. Rabois and hedge fund manager Eric Jackson were among those who were vocal critics of Wheeler and called for her departure.
The company was at risk of being delisted from the Nasdaq in May due to its stock price being below $1. Weeks later, Opendoor attracted a surge in interest from retail investors, earning it “meme stock” status, after Jackson began touting the company.
With the after-hours pop, Opendoor now has a market cap of close to $6 billion, up from less than $400 million less than three months ago.
Nejatian spent six years at Shopify and oversaw the Canadian e-commerce company’s product division in addition to serving as its COO. Nejatian’s last day at Shopify will be Sept. 12, and the company’s executive team will “assume Kaz’s responsibilities,” Shopify said in a regulatory filing.
“Literally there was only one choice for the job: Kaz,” Rabois said in a statement. “I am thrilled that he will be serving as CEO of Opendoor.”
Opendoor went public through a special purpose acquisition company in 2020. The company’s business involves using technology to buy and sell homes, pocketing the gains.
WATCH: Cramer’s lightning round
Oracle Corp Chief Executive Larry Ellison during a launch event at the company’s headquarters in Redwood Shores, California June 10, 2014.
Noah Berger | Reuters
Oracle‘s massive growth trajectory for cloud infrastructure is lifting all boats.
The cloud giant forecasted skyrocketing sales to $114 billion in the company’s fiscal 2029, signalling demand for artificial intelligence processing will remain high over the next few years, and will require Oracle to build out new data centers.
“The guide for a 14x of Oracle’s cloud infra segment in 5 years, mostly from GPU cloud demand, and the guide for capex of $35b in FY26 is bullish Nvidia, other AI hardware suppliers and the eco-system of partners building and financing Oracle’s GPU data centers,” wrote UBS analyst Karl Keirstead in a note on Wednesday.
As Oracle shares roared 40% higher on Wednesday, companies that provide the chips and systems for its buildout — or even compete with it — are seeing their stocks boom.
Nvidia, which says its computers and chips comprise about 70% of the total budget for an AI data center, climbed 4%.
Taiwan Semiconductor Manufacturing Co., which makes chips for Nvidia and others in AI, rose over 4% during trading on Wednesday after it said sales increased by 34% in August.
Broadcom, which makes networking gear to tie Nvidia chips together and plays a key role in custom AI chips for companies like Google, climbed 9%.
AMD is the main Nvidia competitor for graphics processors used for AI, although its chips currently only have a small fraction of the market. Its shares rose 3%.
Micron, which makes memory used in Nvidia’s most advanced chips, rose 4%.
Super Micro and Dell, which both make complete server systems around Nvidia’s chips, each rose 4%.
“The vast majority of our CapEx investments are for revenue-generating equipment that is going into the data centers,” Oracle’s Safra Catz said on Tuesday.
The biggest gainer was one of Oracle’s so-called neo-cloud competitors, CoreWeave, which rose 20% on continued exuberance around insatiable demand for AI compute. Neo-clouds compete against Google, Amazon, and Microsoft for cloud customers by focusing on offering better access and tools for artificial intelligence.
-
Sports3 years ago‘Storybook stuff’: Inside the night Bryce Harper sent the Phillies to the World Series
-
Sports1 year agoStory injured on diving stop, exits Red Sox game
-
Sports2 years agoGame 1 of WS least-watched in recorded history
-
Sports2 years agoMLB Rank 2023: Ranking baseball’s top 100 players
-
Sports2 years agoButton battles heat exhaustion in NASCAR debut
-
Sports4 years ago
Team Europe easily wins 4th straight Laver Cup
-
Environment2 years agoJapan and South Korea have a lot at stake in a free and open South China Sea
-
Environment11 months agoHere are the best electric bikes you can buy at every price level in October 2024