Image of coffee beans
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Coffee Roasting and Popcorn Lung

Byoliveridley

Cross-posted from Interrobang

Who among us coffee drinkers don’t love the smell of freshly roasted coffee? I am sure some of us imagine how much fun it would be to smell freshly roasting coffee more often. I don’t, because smell for me is an instant jolt of pleasure/pain followed by a rather rapid decline into the background.

Caution, though. New measurements from the US Centres for Disease Control warn of high exposure to some pretty nasty chemicals that can cause your lungs to be destroyed irreversibly, the unfortunately named “popcorn lung” or bronchitis obliterans:

Investigators with the National Institute of Occupational Safety and Health, a research arm of the CDC, spent several days at Madison-based Just Coffee in July. Investigators tested personal air space and took air samples to measure the concentration of the chemicals diacetyl and 2,3-pentanedione… NIOSH researchers found levels in three breathing-zone samples that exceeded the safety levels recommended by the CDC.

Coffee Roasting Plants and Exposure

The test results show a marginal exceedance in this case, but noted that ventilation is a big factor and these tests were done under well ventilated conditions on a warm and dry day when doors were open. So, exposure can be higher in other circumstances.

Worker exposures are to higher levels, and are more sustained, so they deserve the most attention.

So, local coffee roasters, it may make sense to confirm that your roasting environments are not exposing your workers to harmful, lung obliterating chemicals. Remember, organic, shade grown, fair pay, artisanal roasting aside, chemical exposures to workers don’t change. And, everything that smells good isn’t good for you.

One of my frequent points of emphasis (rants, some might say) is on the relative risk vs. media attention to exposures of people to ambient, day to day concentrations of potential harmful chemicals vs. those faced by workers everywhere. The last time diacetyl and bronchitis obliterans were in the news, it was around the use of diacetyl to produce that buttery smell so beloved in microwave bag popcorn (I don’t like it myself, olive oil all the way!). Despite reports of many workers facing severe lung issues, it took the detection of the disease of one person eating multiple bags of microwave popcorn over many years to actually move government regulators into action on diacetyl. People who work in factories, in the fields, and make things are exposed to thousands of times higher concentrations of harmful chemicals for longer periods of time, but their concerns are often de-emphasized.

This doesn’t mean ambient exposures in the general population are to be ignored, but worker exposures are to higher levels, and more sustained, so they deserve the most attention.

16-May-2016 Update

This US Centers for Disease Control page is a good collection of information and further readings. They recommend facility tests to measure diacetyl and its cousin 2,3-pentanedione, and better ventilation, worker safeguards and personal protective equipment as necessary. They also note that at least five workers in large scale coffee processing plants have been diagnosed with bronchitis obliterans.

Coffee image By Ailura – Own work, CC BY-SA 3.0

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    Good news on Diacetyl

    Byoliveridley

    It turns out that turning up the heat on popcorn manufacturers to replace diacetyl, the artificial butter flavoring ingredient that kills people exposed to it during manufacturing, has effects. Apparently, there are substitutes that work just as well and can be used without too much trouble.

    Popcorn Maker Drops Chemical Linked To Lung Ailment – Local News Story – WRTV Indianapolis

    Weaver Popcorn Co., one of the nation’s top microwave popcorn makers, has switched to a new butter flavoring, replacing a chemical linked to a lung ailment in popcorn plant workers.

    The Indianapolis-based company began shipping new butter-flavored microwave popcorn a few weeks ago that contain no diacetyl, a chemical undergoing national scrutiny because of cases of bronchiolitis obliterans, a rare life-threatening disease often called popcorn lung.

    Company president Mike Weaver said that although his workers have experienced no such cases, the family-owned business wanted to lead the popcorn industry and allay consumer fears by eliminating the chemical from its product line

    David Michaels of George Washington University’s Scientific Knowledge and Public Policy Project and writer on one of my favorite blogs, the Pump Handle has been at the forefront of documenting this issue, raising awareness and bringing pressure to bear. I am glad to see that we’re seeing positive change for diacetyl.

    Hopefully, you’re going to start seeing “Diacetyl Free!!!!” signs on your microwave popcorn (and other artificially buttered products) real soon.

  • | |

    Green Scolding and Media Victim Blaming

    Byoliveridley


    Dracula Lurks in Your Set-Top Box – NYTimes.com

    Most Americans are guilty of a similar if less costly squandering of
    energy when it comes to their cable or satellite TV boxes. A new study
    released on Tuesday by the National Resources Defense Council shows that
    set-top boxes in the United States consume nearly as much energy when
    not in use as when they are on, costing a cumulative $2 billion a year.

    Dear media, let’s break down the choices consumers have with regards to set top boxes:

    1. Not get one, and hence lose access to encrypted channels, digital cable, etc, which are now de rigueur
    2. Get one, and unplug it every time, which means reaching behind (as you kindly mention), unplugging, and waiting for restart, etc. My Telus box usually takes a couple of minutes at least to reinitialize, and behaves a bit weirdly for another minute afterwards. So how many people will do this?
    3. Be scolded by you for not being environmentally friendly.

    Now, let’s see what would happen in a real, and properly regulated market.

    1. There would be little connection between the set top box and the content. You would get a box, or use your computer, and just put in a card from your cable company for decryption. While cablecards kinda exist, the reason you haven’t heard of them is because cable companies want you captured by their expensive hardware. separate the two, box manufacturers are free to sell you fancy boxes like this one that can manage all your media, have a friendly interface, cost less, look cool, and consume less energy, and can use all these as marketing points.
    2. There would be sensible regulation on ALL electric devices to include standby mode, with automatic sleep mode. So, if something is not in use, it shuts off in 15 minutes. Seems difficult? Computers do this all the time, routinely. A set top box is just an underpowered computer.

    So, let’s not blame the consumer here, shall we? If anyone is guilty, it is media and telecommunication oligopolies that don’t let us actually have free choice, while simultaneously claiming that any regulation is anti-  free market.

  • |

    My kid loves statistics and 15 minute cities

    Byoliveridley
    My kid’s transport goals for the year

    We have started this simple diary where my 7 yo tracks each of her trips and categorizes them as car or not car. I find the analog simplicity of this approach to be appealing and I’ll be helping her keep this updated. I am also resisting temptation to add more data to this survey for myself (her project, not mine!) My movement goals are the same as hers, walk and bike as much as practicable leaving driving only for the “it’s too far or I don’t have even 10 minutes to spare or I have to carry something that won’t fit on my cargo bike, or it’s not safe to bike with a kid”.

    Our life for the most part now fits the 15 minute city model, the concept that “Everyone living in a city should have access to essential urban services within a 15 minute walk or bike.”. Other than my once a week commute to work, almost everything we do is in that 15 minute walk/bike window and while our all age and abilities bike network is still work in progress, the trend is clear (thanks Dave Thompson Victoria City Councilor for the graphic from the CRD transportation survey)

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    Turtles, Arribadas, Science, Policy and Implementation

    Byoliveridley

    turtle Read stuff like this (hat tip to my mom for telling me about this report she’d seen on TV in Madras), and you begin to doubt your utility as a scientist.
    IBNLive : Orissa turtles neck-deep in danger

    Nearly 3,000 Olive Ridley turtles have died off the Orissa coast this season. Beaches have become turtle graveyards.

    Orissa is one of the three places in the world where the Olive Ridleys come for their annual mass nesting.

    Mechanised trawlers are the biggest culprits for this slaughter. When the trawlers go to the sea, turtles are trapped in their fishing nets. The turtles are unable to disentangle themselves and suffocate to death.

    See the video report too. In her own breathlessly indignant style, the reporter explains the science behind turtle excluder devices (well known and established), the regulation expressely forbidding shrimp trawling close to the coast, especially during the arribada, the money set aside in the budget to purchase a few speed boats for the coast guard, who are well aware of the problem, so wot’s, uh, the deal?

    The investigative reports contradict each other, the first one linked said there was no patrolling, the second one gushingly praises the coast guard for vigorous enforcement and patrolling, so which is it? I need to find out, call on some old friends… But clearly, there are issues if net catch mortality is on the rise.

    The three pillars of any regulatory action are the science, the policy, and the implementation. The science here is very clear (though the US administration seems to not think so any more?), shrimp nets with turtle excluder devices cause decrease in mortality. The policy is clear, use these nets when shrimp fishing, and completely ban fishing activity during the arribada (the number of turtles in an arribada, 50000 in a night and perhaps 300000-400000 over the course of a week is staggeringly large, so, shrimp net or not, you’ll kill a lot of turtles just by being there).

    So, like anything else in India, where is the implementation? The people running the trawlers know they are illegal anyway, so they don’t bother with the TEDs. The owners of the trawling boats never face the consequences, only the poor hapless fishermen running the boats. No attempt is made to coopt the people being regulated, it is a top down “we tell you what to do” kind of situation where the law is selectively enforced, no explanations are given, the regulation may just be an excuse to get some kickbacks. The fishermen see the excluder device as an inconvenience as they are not shown how to use it. Some low level bureaucrat in charge of buying high speed boats for the state’s forest service either does not realize the importance of getting this policy on the road, or is on the take. You can pick any, or all of these reasons and you’ll see why just like most other things in India, the road to hell is paved with good intentions 🙁

    Why be a scientist and come up with cool new techniques to do things when you don’t pay equal attention to the implementation of techniques invented 20 years back? As a responsible scientist, I must look at policy and implentation with as much interest and passion as I look at the science – New career paths?

  • | |

    More depressing water news from India

    Byoliveridley

    Climate change is a factor that will exacerbate water shortages. But the main culprits are over-exploitation, unplanned development, pollution and crazy dam building.

    The Sunday Tribune – Spectrum

    In the years to come the northern plains, heavily dependent on the Ganga, are likely to face severe water scarcity. Together with the onslaught of industrial and sewage pollutants, the river’s fate stands more or less sealed. “Among the categories dead, dying and threatened, I would put the Ganga in the dying category,” says WWF Programme Director Sejal Worah. The other heavyweight to join in the list from the Indian subcontinent is the mighty Indus. The Indus, too, has been the victim of climate change, water extraction and infrastructure development. “In all, poor planning and inadequate protection of natural means have ensured that the world population can no longer assume that water is going to flow forever,” WWF says, adding that the world’s water suppliers—rivers-on-every-continent are dying, threatening severe water shortage in the future.

    I think I will go out and enjoy the rest of this beautiful day, enough bad news!

  • Duke Energy wants your money to pollute you

    Byoliveridley

    Charlotte Observer | 06/06/2007 | Green groups lose effort to block Duke plant

    AAAAAAAAAAAAAAAAAAAAAARGH!!! STOP BUILDING COAL POWER PLANTS NOW!!! – NO MORE COAL WITHOUT SEQUESTRATION!!

    How’s that for a bumper sticker?

    The N.C. Utilities Commission upheld its March decision to allow Duke to build one 800-megawatt unit. The commission in March had rejected Duke’s request to build two units. Environmentalists subsequently asked the regulators to reconsider their decision allowing one unit.

    The commission’s ruling shifts the battle over Duke’s proposed Cliffside project to the N.C. Department of Environment and Natural Resources, the agency that is considering an air quality permit for the proposed power plant. When the draft permit is issued later this year, the organizations will likely contend that the Cliffside project is not using the cleanest technology available and is falling short of federal air quality standards.

    “We’re using all available legal tools to stop a dirty power plant from being built,” said Michael Shore, a senior air policy analyst at N.C. Environmental Defense. “Everything is an attempt to delay and hopefully prevent construction.”

    In their appeal to the utilities commission, the environmentalists contended that the Cliffside project is not the most economical choice, but rather the “worst-cost” option. Last year, the capital cost of two Cliffside units was estimated at $2 billion, but this year Duke revised the costs, saying that building one unit would cost $1.8 billion.

    The cost of building, financing, maintaining and operating power plants is paid by utility customers through electric rates.

    Note that this project at the enormous cost of 2 billion dollars is funded entirely by increases in NC utility bills. So, not only are they shafting us thoroughly, they’re using our money to do it, the temerity. I am pissed off, and I have no choice to buy power from anyone other than the morons at Duke Energy where I live. it’s Duke, or candlelight for me!

    The battle shifts to the NC-DENR, which will need to issue an air quality permit. It’s time for all groups involved to delay this project until NC comes up with a viable climate change mitigation policy that wil make plants like these completely unviable. It’s a good thing that this is the exact strategy they’re going for! Maybe our legislators and regulators should take the time to read their local paper.

    On some days, stretches of Nags Head have no dry beach, and visitors have to sit under the front-row houses at high tide. The resort that once thrived by the sea is being swallowed by it.

    “We are losing the town,” Cahoon said. “As sea level rises, our tax base goes away.”

    Other, more subtle changes are under way along the coast, not just on the fragile barrier islands. As salt water pushes farther upriver, some rivers are widening into estuaries, tidal bodies of water where fresh and salt water mix. Freshwater swamps are changing to salt marsh.

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