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Coronavirus: Air Pollution Might Raise Risk of Fatality
By Ajit Niranjan
Two main risk factors are currently known to raise the chance of dying from the novel coronavirus that has brought the world to a halt: being old and having a weak immune system.
Air pollution makes the second of those more likely.
"If you live in a polluted area, your lungs are compromised like somebody who smokes, so you're more susceptible to the coronavirus," said Kofi Amegah, an epidemiologist and air pollution expert at the University of Cape Coast in Ghana.
Dirty air, which claims more than 7 million lives a year, could make Covid-19 more deadly by contributing to chronic health conditions that leave patients weak in the face of infection.
The European Public Health Alliance said last week that air pollution is likely to cut survival chances from Covid-19.
Research on previous outbreaks has also suggested bad air makes viruses more deadly and spread further. A study of SARS-CoV-1 victims in 2003 found that patients were twice as likely to die in regions where air pollution was high rather than low. Even in regions that were only moderately polluted, the risk of dying was 84% higher.
If a similar dynamic exists for Covid-19, it could add pressure on the critical care units of hospitals in smoggy cities with rapidly rising cases, such as Madrid, London and New York. It could also spell trouble for countries in the global south where most people burn wood, dung, kerosene or coal indoors to cook and heat their homes.
In northern Italy and the Chinese city of Wuhan, home to high levels of pollution and some of the most severe outbreaks to date, preliminary data suggests that particulate matter may already have played a role in overwhelming health care systems.
PM2.5 — particulate matter smaller than 2.5 microns in diameter, less than the width of a human hair — can penetrate the lung barrier and enter the bloodstream, raising the risk of developing heart and lung disease.
The case fatality rate in China was nine times higher for people with cardiovascular disease and six times higher for patients with diabetes, hypertension and respiratory disease than it was for people without underlying health conditions, a joint study by the World Health Organization and China found in February.
In Italy, health officials reported in March that 99% of a sample of patients who died from Covid-19 had an underlying illness — with almost half the deceased having suffered from three or more — though the sample was not drawn randomly and may not represent the population. The most common ailments were high blood pressure, heart disease and diabetes.
The WHO says the pandemic is too recent to draw a link between air pollution and the deadliness of Covid-19, but this shouldn't stop countries from acting.
"Whether or not we have this correlation between Covid-19 and air pollution, we need to reduce air pollution no matter what," Maria Neira, director of public and environmental health at the World Health Organization, told DW.
"Stop smoking and reduce the levels of air pollution — that is a recommendation we can make even without having more evidence."
Together with ozone pollution, PM2.5 particles shave almost three years off our lives, a study in the journal Cardiovascular Research found last month. The global loss of life from outdoor air pollution is 10 times greater than that of all forms of violence put together.
Moreover, about nine in 10 premature deaths caused by air pollution — including toxic gases NO2 and SO2 — hit people in low and middle-income countries. Even within rich cities in Europe and North America, working class, black and ethnic minority communities tend to breathe the dirtiest air.
Across sub-Saharan Africa, women are particularly exposed to pollutants from indoor cooking.
"For these women, their lung systems are compromised," said Amegah from Ghana's University of Cape Coast, adding that if Covid-19 spreads they will be especially vulnerable.
"We pray and keep our fingers crossed we don't see the levels [we're seeing] in northern Italy and China."
As well as weakening the body, airborne pollutants could even act as a carrier of the new coronavirus and allow it to survive in the air attached to particulates, a team of Italian researchers suggested in March.
High concentrations of particulate matter in parts of northern Italy in February may have "boosted" the spread of the epidemic this way, according to a position paper published by the Italian Society of Environmental Medicine that has not yet been peer-reviewed.
Other scientists have cast doubt on this, pointing out that there are no reported cases of this coronavirus spreading in the air and that people are the main vector of transmission.
"It's good to reduce air pollution to promote health, even to help decrease preconditions that could aggravate coronavirus, such as asthma, but I cannot see [air pollution] as an important contribution to the discussion about containment of the virus," said Jos Lelieveld, director of atmospheric chemistry at the Max Planck Institute and lead author of the study on deaths from air pollution.
As coronavirus cases rise exponentially around the world, lockdowns to stop its spread have reduced pollution levels.
Satellite images of China and Italy show striking drops in NO2, a toxic gas that inflames the airways, as governments closed factories and kept cars off the streets. The drop in air pollution in China may even have saved more lives than were lost from Covid-19, a study that has not yet been peer-reviewed suggested on Friday, though this comparison does not factor in the lives that would have been lost had the coronavirus spread unchecked.
Not all of the fall in air pollution seen from space can be attributed to lockdowns, either. Air pollution is higher in colder months anyway because people heat more and drive cars more often, so it tends to fall around this time of year, said Christian Retscher of the European Space Agency.
"Certainly, we see an effect of the coronavirus on NO2 … We see an additional effect [but] we don't know the precise number."
While lockdowns have helped clean the air, it is also uncertain how long they will keep pollution levels down.
"Once the crisis is over, and we see this in China, there's a temptation to compensate for the weeks and months lost," said Zoltan Massay-Kosubek, a policy expert for clean air and sustainable transport at the European Public Health Alliance.
Nonetheless, this shows that air pollution can be reduced and lives saved, said the WHO's Neira. "Now we need to maintain that — not the fact that we'll be confined, but reducing the air pollution levels outside."
Reposted with permission from DW.
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By Alex Thornton
The Australian government has announced a A$190 million (US$130 million) investment in the nation's first Recycling Modernization Fund, with the aim of transforming the country's waste and recycling industry. The hope is that as many as 10,000 jobs can be created in what is being called a "once in a generation" opportunity to remodel the way Australia deals with its waste.
Waste Mountain<p>The need for a dramatic increase in Australia's recycling capacity pre-dates the COVID-19 pandemic. <a href="https://www.abc.net.au/news/2019-12-27/where-does-all-australias-waste-go/11755424" target="_blank">Australians create approximately 67 million tons of waste a year</a>, and like in many wealthy countries, much of that was sent overseas. That all changed when China announced it was <a href="https://www.weforum.org/agenda/2017/10/china-has-banned-foreign-waste-so-whats-the-future-of-world-recycling" target="_blank">banning the import of a huge range of foreign waste</a> and recyclables. Soon <a href="https://www.weforum.org/agenda/2019/05/malaysia-flooded-with-plastic-waste-to-send-back-some-scrap-to-source" target="_blank">other countries followed suit</a>, and Australia was forced to look for alternative solutions.</p>
Biggest exporters of plastic. Statista
Waste Export Ban<p>Australia has adopted a strategy of taking responsibility for its own waste. Starting in January 2021, it is phasing in <a href="http://www.environment.gov.au/protection/waste-resource-recovery/waste-export-ban" target="_blank">bans on the export of different forms of waste</a>. By mid 2024, Australia's home-grown recycling industry will have to deal with an extra 650,000 tons of waste plastic, paper, glass and tires.</p><p>"As we cease shipping our waste overseas, the waste and recycling transformation will reshape our domestic waste industry, driving job creation and putting valuable materials back into the economy," federal environment minister Sussan Ley said in a <a href="https://uk.reuters.com/article/us-australia-waste/australia-to-set-up-132-million-fund-to-boost-recycling-following-export-curbs-idUKKBN247060" target="_blank">statement to Reuters</a>.</p>
Timeline for Australia's waste export ban. Australian Government
Trash Into Treasure<p>The benefits to the environment of boosting recycling rates are well known – less landfill, less plastic in our ocean, reduced need for virgin materials, and lower carbon emissions. The Recycling Modernization Fund initiative aims to divert more than 10 million tons of waste from landfill, part of an <a href="http://www.environment.gov.au/protection/waste-resource-recovery/publications/national-waste-policy-action-plan" target="_blank">overall strategy to reduce the total waste generated per person by 10%</a>, and push <a href="https://www.environment.gov.au/system/files/resources/7381c1de-31d0-429b-912c-91a6dbc83af7/files/national-waste-report-2018.pdf" target="_blank">Australia's total resource recovery rate from 58% in 2017</a> to 80% by 2030.</p><p>But like many countries, Australia is focusing on the economic benefits of better waste management as well.</p><p>"This will mean Australia converts more waste into higher valued resources ready for reuse locally by manufacturers and brands in their packaging and products," Rose Read, CEO of the National Waste and Recycling Industry Council, <a href="https://uk.reuters.com/article/us-australia-waste/australia-to-set-up-132-million-fund-to-boost-recycling-following-export-curbs-idUKKBN247060" target="_blank">told Reuters</a>.</p>
Green Jobs<p>The great potential of the circular economy to create green jobs is being recognized across the world.</p><p>In the UK, the Waste and Resources Action Program has launched a <a href="https://wrap.org.uk/buildbackbetter" target="_blank">six-point plan which it claims could add $90 billion to the economy, and create 500,000 new jobs</a>. Investment in the circular economy forms a significant part of the <a href="https://www.nytimes.com/2020/07/14/us/politics/biden-climate-plan.html" target="_blank">$2 trillion climate plan that Democratic candidate Joe Biden</a> is taking into November's US presidential election. And the <a href="https://ec.europa.eu/commission/presscorner/detail/en/ip_20_940" target="_blank">European Union has put its Green New Deal at the heart of its plans for recovery</a> from the economic shock of COVID-19.</p><p>The World Economic Forum's <a href="http://www3.weforum.org/docs/WEF_The_Future_Of_Nature_And_Business_2020.pdf" target="_blank">Future of Nature and Business</a> report identifies 15 systemic transitions with annual business opportunities worth $10 billion a year that could create 395 million jobs by 2030.</p><p>As is the case with Australia's Recycling Modernization Fund, a combination of private enterprise and government investment can offer ways to get people back to work by building a more environmentally sustainable economy.</p>
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The Great American Outdoors Act is now the law of the land.
<div id="e0008" class="rm-shortcode" data-rm-shortcode-id="ffc07febbf5d2d585ad06d3f43e2be56"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1290667833999929344" data-partner="rebelmouse"><div style="margin:1em 0">🚨Breaking News: The President has just signed the bipartisan #GreatAmericanOutdoorsAct. It will help: 🏗️ Restore… https://t.co/RPefKPMn7S</div> — Fix Our Parks (@Fix Our Parks)<a href="https://twitter.com/FixOurParksUS/statuses/1290667833999929344">1596554165.0</a></blockquote></div>
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By Andrew J. Whelton and Caitlin R. Proctor
In recent years wildfires have entered urban areas, causing breathtaking destruction.
Survivors left everything to flee the Camp Fire's path. Andrew Whelton / Purdue University
Wildfires and Water<p>Both the Tubbs and Camp fires destroyed fire hydrants, water pipes and meter boxes. Water leaks and ruptured hydrants were common. The Camp Fire inferno spread at a speed of one football field per second, chasing everyone – including water system operators – out of town.</p><p>After the fires passed, testing ultimately revealed widespread hazardous drinking water contamination. Evidence suggests that the toxic chemicals originated from a combination of <a href="https://doi.org/10.1002/aws2.1183" target="_blank">burning vegetation, structures and plastic materials</a>.</p>
Pipes, water meters and meter covers after wildfires destroyed them. Caitlin Proctor, Amisha Shah, David Yu, and Andrew Whelton/Purdue University
Dangerous Contamination Levels<p>Benzene was found at concentrations of 40,000 parts per billion (ppb) in drinking water after the Tubbs Fire and at more than 2,217 ppb after the Camp Fire. According to the California Office of Environmental Health Hazard Assessment, children exposed to benzene for a single day can suffer <a href="https://engineering.purdue.edu/PlumbingSafety/resources/Benzene-Levels-in-Water.pdf" target="_blank">harm at levels as low as 26 ppb</a>.</p><p>The U.S. Environmental Protection Agency recommends limiting children's short-term acute exposure to <a href="https://www.epa.gov/sites/production/files/2018-03/documents/dwtable2018.pdf" target="_blank">200 ppb</a>, and long-term exposure to less than <a href="https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations" target="_blank">5 ppb</a>. The EPA regulatory level for what constitutes a hazardous waste is <a href="https://19january2017snapshot.epa.gov/sites/production/files/2015-06/documents/tclp.pdf" target="_blank">500 ppb</a>.</p><p>In early 2019, California conducted contaminated water testing on humans by taking contaminated water from the Paradise Irrigation District and asking persons to smell it. The state found that even when people smelled contaminated water that had less than 200 ppb benzene, <a href="https://engineering.purdue.edu/PlumbingSafety/resources/Dissipatiion-of-Burn-Related-VOC-From-Water.pdf" target="_blank">at least one person reported nausea and throat irritation</a>. The test also showed that water contained a variety of other benzene-like compounds that first responders had not sampled for.</p><p>The officials who carried out this small-scale test did not appear to realize the significance of what they had done, until we asked whether they had had their action approved in advance by an institutional review board. In response, they asserted that such a review was not needed.</p><p>In our view, this episode is telling for two reasons. First, one subject reported an adverse health effect after being exposed to water that contained benzene at a level below the EPA's recommended one-day limit for children. Second, doing this kind of test without proper oversight suggests that officials greatly underestimated the potential for serious contamination of local water supplies and public harm. After the Camp Fire, together with the EPA, we estimated that some plastic pipes needed <a href="https://engineering.purdue.edu/PlumbingSafety/opinions/Final-HDPE-Service-Line-Decontamination-2019-03-18.pdf" target="_blank">more than 280 days</a> of flushing to make them safe again.</p>
Plastic pipes can be damaged by heat and fire contact. Andrew Whelton / Purdue University
Building Codes Could Make Areas Disaster-Ready<p>Our research underscores that community building codes are inadequate to prevent wildfire-caused pollution of drinking water and homes.</p><p>Installing one-way valves, called backflow prevention devices, at each water meter can prevent contamination rushing out of the damaged building from flowing into the larger buried pipe network.</p><p>Adopting codes that required builders to install fire-resistant meter boxes and place them farther from vegetation would help prevent infrastructure from burning so readily in wildfires. Concrete meter boxes and water meters with minimal plastic components would be less likely to ignite. Some plastics may be practically impossible to make safe again, since all types are susceptible to fire and heat.</p><p>Water main shutoff valves and water sampling taps should exist at every water meter box. Sample taps can help responders quickly determine water safety.</p>
<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="9540d7e271306ed417112042a3efc9a4"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/GnlrzI1wdAI?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
The Smell Test Doesn’t Work<p>Under no circumstance should people be told to <a href="https://www.waterboards.ca.gov/press_room/press_releases/2018/pr122418_voc.pdf" target="_blank">smell the water</a> to determine its safety, as was recommended for months after the Camp Fire. Many chemicals have no odor when they are harmful. Only testing can determine safety.</p><p>Ordering people to boil their water will not make it safe if it contains toxic chemicals that enter the air. Boiling just transmits those substances into the air faster. "Do not use" orders can keep people safe until agencies can test the water. Before such advisories are lifted or modified, regulators should be required to carry out a full chemical screen of the water systems. Yet, <a href="https://doi.org/10.1002/aws2.1183" target="_blank">disaster</a> after <a href="https://pubs.rsc.org/en/content/articlehtml/2017/ew/c5ew00294j" target="_blank">disaster</a>, government agencies have failed to take this step.</p><p>Buildings should be tested to find contamination. <a href="https://www.purdue.edu/newsroom/releases/2020/Q1/study-your-homes-water-quality-could-vary-by-the-room-and-the-season.html" target="_blank">Home drinking water quality can differ from room to room</a>, so reliable testing should sample both cold and hot water at many locations within each building.</p><p>While infrastructure is being repaired, survivors need a safe water supply. Water treatment devices sold for home use, such as refrigerator and faucet water filters, are not approved for extremely contaminated water, although product sales representatives and government officials may <a href="https://undark.org/2019/09/19/camp-fire-california-drinking-water-carcinogens/" target="_blank">mistakenly think</a> the devices can be used for that purpose.</p><p>To avoid this kind of confusion, external technical experts should be called in assist local public health departments, which can quickly become overwhelmed after disasters.</p>
<div id="71cf9" class="rm-shortcode" data-rm-shortcode-id="e059d199e8368d282a31601e372e4dda"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1204068265980547075" data-partner="rebelmouse"><div style="margin:1em 0">The Los Angeles City Council's Planning and Land Use Committee signed off on an effort to expand the city's fire-re… https://t.co/fP8Z8mUq7R</div> — IntlCodeCouncil (@IntlCodeCouncil)<a href="https://twitter.com/IntlCodeCouncil/statuses/1204068265980547075">1575907219.0</a></blockquote></div>
Preparing for Future Fires<p>The damage that the Tubbs and Camp fires caused to local water systems was preventable. We believe that urban and rural communities, as well as state legislatures, should establish codes and lists of authorized construction materials for high-risk areas. They also should establish rapid methods to assess health, prepare for water testing and decontamination, and set aside emergency water supplies.</p><p>Wildfires are coming to urban areas. Protecting drinking water systems, buried underground or in buildings, is one thing communities can do to prepare for that reality.</p>
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