| |

Arsenic in the News

Professor wins $1M for arsenic filter – Yahoo! News

The National Academy of Engineering announced Thursday that the 2007 Grainger Challenge Prize for Sustainability would go to Abul Hussam, a chemistry professor at George Mason University in Fairfax. Hussam’s invention is already in use today, preventing serious health problems in residents of the professor’s native Bangladesh.

This British Geological Survey website provides a good primer to the problem. Some key points:

  1. Arsenic is very toxic
  2. Arsenic is naturally occurring in the shallow groundwater aquifers of Bengal and Bangladesh at a toxic level
  3. The surface water is contaminated with bacteria and was responsible for high infant mortality, so aid agencies in the ’70s encouraged the use of tube wells and other groundwater pumps. While this contributed to a decline in infant mortality from gastrointestinal infections, it also dosed unsuspecting people with disease causing levels of arsenic
  4. The technology for removal of arsenic is very well known. But most solutions require electricity/periodic maintenance/technical skills and are thus not universal or sustainable.
  5. Simplicity is the key. You can’t tell the people to not drink the water, it is the only clean water available. You can’t install water treatment plants, there is no running water, you can’t rely on solutions that are centralized.

So with all that in mind, here’s what Prof. Hussam did:

The Gold Award-winning SONO filter is a point-of-use method for removing arsenic from drinking water.  A top bucket is filled with locally available coarse river sand and a composite iron matrix (CIM).  The sand filters coarse particles and imparts mechanical stability, while the CIM removes inorganic arsenic.  The water then flows into a second bucket where it again filters through coarse river sand, then wood charcoal to remove organics, and finally through fine river sand and wet brick chips to remove fine particles and stabilize water flow.  The SONO filter is now manufactured and used in Bangladesh. That’s great, and easy!

That’s pretty much freshman chemistry right there, further proof that most innovation does not need new science, only people willing to spend some time on problems that don’t necessarily get looked at.

Similar Posts

  • Global warming gets local and cloudy in Seattle

    seattle.jpgI’ve noticed that a lot of global warming stories, and books use abstraction and remote examples to illustrate their point. Elizabeth Kolbert’s excellent and readable Field Notes from a Catastrophe calls up the Arctic, the Antarctic, Polar Bears and rising sea levels. The publicity for Al Gore’s (Gore/Obama 2008!) Inconvenient Truth which I have not seen, talks about the Snows of Kilimanjaro extensively.

    This kind of imagery is useful, but in the end, Leigh Person in Gary, IN (my favorite name and average city, resp.) will not be moved by shrinking Arctic ice. How will global climate change affect Leigh’s commute? Will Leigh’s vacation home on the beach be below water in 30 years? Will Leigh’s house be invaded by cockroaches? What will happen to Leigh’s 401K? What about Leigh’s kids?

    It is difficult enough, given the false balance on climate change reporting, to make long term predictions that will not be “disputed” by “sceptics”, so to make local predictions that are more uncertain is difficult, which is why reporting like the example below must be lauded.

    Climate change is a difficult problem, because the countries responsible for the bulk of past, present and future emissions are not the ones that will face the most serious consequences. I want to go into this in greater depth as I read and learn more, but any change in the availability of fresh water in, say, India will result in utter chaos, decelerated growth and death. But the countries most significantly affected (the tropics) are helpless to deal with climate change….

    Hopefully, local focused stories will spur people to action.

    The Seattle Times: Local News: An even grayer Seattle from global warming?

    For those harboring the guilty hope that global warming will transform Seattle into a sun lovers’ paradise on par with the Côte d’Azur, meteorologist Cliff Mass has some bad news: It might actually get cloudier.

    Mass and his colleagues at the University of Washington recently completed the most detailed computer simulation ever conducted of the region’s future weather. Among the surprises was a big boost in cloud cover in March, April and May.

    “The spring is going to be gunkier — if you believe this — under global warming,” he said.

    The model also predicts that the number of summer days when temperatures soar into the 90s will more than triple before the end of the century, if greenhouse-gas emissions from cars and industry continue unabated.

    And the hopes of some water managers appear to be dashed by the finding that catastrophic losses of winter snowpack will not be offset by more summer thunderstorms.

  • |

    Al Franken is good for health

    You know what's in your food and many beauty products. Senator Al Franken wants to make it possible to see exactly what's in your household cleaning products as well.The Minnesota Democrat introduced a bill in the U.S. Senate requiring producers to fully disclose all ingredients on their product labels, including those suspected of causing long-term harm. Currently the warnings on cleansers are designed to prevent immediate harm due to swallowing, splashing in eyes or other unintended uses.

    via Kare 11

    It would seem common sense to have information on labels, especially on the harsh and powerful chemicals we use every day. You may not understand what they mean, or how to pronounce the chemical names, but you don’t have to! Organizations such as the Environmental Working Group have extensive information on common high volume chemicals so people can match what they see on the label with what they would like to avoid.

    But it is not the law of the land in the US, or Canada for that matter. Al Franken, comedian, talk show host and an intelligent man turned senator would like to change that in the US. Of course, we in Canada would benefit as well.

    Chemical manufacturers aren’t having any of this.

    There’s always a concern about turning labels into encyclopedias,” Brian Sansoni of the Soap and Detergent Association, in Washington, D.C., told KARE Tuesday.

    Pretty insulting, claiming that your consumer does not like encyclopedias, or is not capable of reading and googling.

    Information helps drive consumers to safer alternatives. If you see two cleaners, both of which claim to work equally well, a quick read of the ingredients will drive you to the safer (or simpler) choice. Clearly, sale by obfuscation is the preferred marketing strategy here.

    If I were American, I would call my senator/congressperson and ask them to support Al Franken.

  • Nuclear Energy not Carbon Free?

    Who would have thunk it, turns out that uranium mining and nuclear waste storage result in significant carbon emissions…
    New Debate Over Nuclear Option

    Now, some scientists and other experts are beginning to raise a different question about nuclear power: Is it really as clean as supporters contend? A report, released on Mar. 26 by a British nongovernmental organization called the Oxford Research Group, disputes the popular perception that nuclear is a clean energy source. It argues that while nuclear plants may not generate carbon dioxide while they operate, the other steps necessary to produce nuclear power, including the mining of uranium and the storing of waste, result in substantial amounts of carbon dioxide pollution. “As this report shows, hopes for the climate-protecting potential of nuclear energy are entirely misplaced,” says Jürgen Trittin, a former minister of the environment in Germany and a contributor to the report. “Nuclear power cannot be promoted on environmental grounds.”

    The report, called “Secure Energy? Civil Nuclear Power, Security and Global Warming,” examines a number of risks from nuclear power development, including concerns over the disposal of radioactive waste and the threats from terrorist groups. But its most novel component may be the quantitative examination of carbon emissions on a comprehensive basis. “Carbon emissions are a global problem and it’s time to look at the carbon released by nuclear power globally,” says Jan Willem Storm van Leeuwen, author of the report’s chapter on carbon emissions. “The assumption has long been that the [greenhouse] effect is zero, but the evidence shows otherwise.”

    carbonfacts_sm.jpg“Novel component”?, well, I would not go that far, it appears that the authors performed a carbon footprint analysis and concluded that the carbon footprint of nuclear fission energy production was somewhere between renewables and fossil fuel power generation, which is not entirely surprising. Coupled with all the other issues facing nuclear energy, and the obvious environmental justice issues that impact the siting of any new plant or waste repository, nuclear energy should not be a very serious option at all. Unfortunately, it’s a great boondongle for the developers of the plants because the subsidies and power pricing mechanisms ensure profits for the developer at the expense of the general public, and waste disposal issues can forever be postponed, eventually leaving governments (and tax payers) to pick up the tab.

    By the way, go read Jamais Cascio’s interesting post about the carbon footprint of a cheeseburger. The “nutrition like label” shown here is something I wish to see in almost every product used! It would make the regulation of carbon a lot less complicated. It appears that England will take the lead on this concept, see Carbon Labelling (yes, 2 L’s, the “correct” spelling!).

  • North Carolina Mercury Alert

    Mercury is a trace element present in coal/oil that is emitted when coal is combusted for energy – Coal fired power plants account for 40% of all Mercury emissions in the USA.

    Is $10 a Year Too Much?

    Courtesy the North Carolina Conservation Network
    They alerted me to this opinion piece in the News & Observer

    North Carolina municipalities are demanding it. Other states are doing it. Now our state must impose maximum available control technology on all coal-burning power plants to reduce mercury emissions by 90 percent as quickly as possible.

    Why? Because it is the best way to protect our most precious natural resource, the brainpower of our children.

    Against the strong advice of the pediatric and public health communities, in 2005 the U.S. Environmental Protection Agency passed a wimpy rule to reduce mercury emissions from coal-burning power plants 70 percent by 2018. The rule also allows a “cap and trade” process, which may produce local hotspots of mercury pollution.

    Later…

    Prenatal exposure at levels consistent with consumption of contaminated fish can lead to IQ loss, memory and attention problems, fine motor deficits and developmental delay. These changes are likely permanent.

    Estimated costs to consumers are about $4-$10 per year.

    This is a no-lose situation. Merury controls are easy to implement, cheap, and requires nothing other than the tweaking of already existing controls. The only reason not do this is knee jerk opposition to even sensible regulation on the part of powerful entities (check out the sweet astroturf on that website!) that have the ear of the federal government.

    The NC Conservation Network is running a campaign to toughen the proposed NC law. Please comment if you live in NC.

    Mercury regulation is a case where the EPA’s much maligned command and control regulation works better than cap and trade policies because mercury is in the unique position of being both a  local and long range pollutant. Local pollutants have to be controlled at each source, so the Federal government’s proposed legislation is a bad idea and states are trying to do better.

  • |

    Canada to stop asbestos mining and stop defending it.

    Canada’s long and sorry saga of exporting death (asbestos) and defending it loudly and proudly in international fora is over and I needed to mark this happy day on the blog. The newly elected provincial government in Quebec, the Parti Quebecois have followed through on their campaign promise to finally end this small “industry” employing a few workers. Canada will no longer produce asbestos, or fight the listing of asbestos as a toxic substance.

    It is going to take $50 million in government funds, a fraction of the cost of one fighter jet, to transition the workers away (if they get the money, not the mine owners). That’s it, why were we exporting death to India and other countries for this, I don’t know.

    Canada’s many conservative and liberal governments fought hard for years to preserve the industry, using techniques lifted from tobacco propaganda, or today’s climate change challenges. I leave you with the ruling Canadian government’s response: Finely tuned to appeal to everyone who likes mesothelioma, cancer and death.

    “Mrs. Marois’s decision to prohibit chrysotile mining in Quebec will have a negative impact on the future prosperity of the area,” (Industry Minister) Mr. Paradis said in a statement.

    That about sums it up. But, it is a good day for public health, nevertheless.

    Citing PQ pressure, Canada to cease defending asbestos mining – The Globe and Mail.

    Featured image courtesy wikipedia used under a Creative Commons license (a micrograph of asbestos fibres causing lesions in the lung).

  • Liquid Coal – Temporarily Frozen

    Liquid coal is back in the news (at least my news!). Via the excellent Grist, Jon Tester (D-Montana – think coal!) casts a principled vote to kill an amendment that would have “mandated” a certain amount of liquid coal be used as part of an omnibus energy package bill.

    Panel rejects coal amendment

    Thomas accused Tester and other Democrats of failing to act on their words of praise for transportation fuels made from coal. But Tester said he couldn’t support the amendment because it would have scuttled the entire bill to which it was attached.

    Tester voted against the provision during a meeting of the Senate Energy and Natural Resources Committee to assemble an energy package. The legislation contains measures boosting biofuels, energy efficiency and research and development on carbon capture and storage technology.

    Thomas’s amendment would have required 21 billion gallons of coal-based fuels to be used annually by 2022. The bill already had a provision mandating 36 billion gallons of biofuels by 2022. The amendment was defeated on a 12-11 party-line vote.

    The Democratic and Republican heads of the Energy Committee had tried to prevent the coal-to-liquids issue from coming up during the panel’s meeting. They wanted to pass a bill out of committee easily and deal with contentious issues, including that one, during debate on the Senate floor

    With such powerful friends, this amendment will not go away. Expect it to be brought back on to the senate floor when it leaves committee. The coal senators of Illinois, West Virginia, Kentucky and the mountain west love the money this will bring to their states. They can pretend to look away from all the devastating effects of coal mining, and the CO2 emissions, etc. by invoking “energy security”. I give you senator Craig Thomas (R-Coal):

    “The bill we’re talking about of course does not include coal and the new opportunities to change the process for developing coal, which would not only enhance our security but it would also reduce and help with the global warming situation,” Thomas said. “I really think if we don’t deal with one of our most abundant resources then we fail to deal with energy security.”

    Yes, using liquid coal will “reduce and help with the global warming situation”. I mean, can’t you at least come up with a plausible half-truth?

    Liquid coal produces more CO2 than gasoline, so how will it help with the global warming situation? Seriously…