Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
×
Earth Government United States Science

EPA Tightens Rules On Some Air Pollution For the First Time In Over a Decade 59

The U.S. Environmental Protection Agency (EPA) today unveiled new, stricter limits for PM2.5 (particulate smaller than 2.5 micrometers in diameter), commonly referred to as soot. As NPR notes, these particles are are "one of the deadliest types of air pollution." From the report: The agency lowered the allowable limit for annual PM2.5 levels from 12 micrograms per cubic meter to 9. That's a "significant reduction," says Regan Patterson, an air pollution expert at the University of California, Los Angeles. "The science is clear," says EPA Administrator Michal Regan. "Soot pollution is one of the most dangerous forms of air pollution and is linked to a range of serious and potentially deadly illnesses, including asthma and heart attacks."

The new standard represents the first tightening of the rules since 2012, but states will have several years to reach the new limits. The EPA left the daily limits on PM2.5 pollution unchanged, at 35 micrograms per cubic meter, saying the same efforts that will reduce pollution under the revised annual standard will drive down short-term pollution exposures as well. Decades of research have demonstrated that tiny particles are dangerous to people's health at nearly any concentration. The sources vary: fossil fuel combustion, agriculture, and industrial processes all add to the load, as does wildfire smoke and dust.

In aggregate, the tiny particles drive millions of premature deaths worldwide each year. The EPA estimates that the new, tighter standards will prevent about 4,500 premature deaths a year by 2032 in the U.S. and prevent about 800,000 asthma-related emergency visits. It estimates the lower pollution exposures could reduce healthcare costs by about $46 billion by that time.
This discussion has been archived. No new comments can be posted.

EPA Tightens Rules On Some Air Pollution For the First Time In Over a Decade

Comments Filter:
  • Regularly exceeded (Score:4, Interesting)

    by VeryFluffyBunny ( 5037285 ) on Thursday February 08, 2024 @04:08AM (#64224072)
    Pollution limits are regularly exceeded & little is done about it; at least not enough to change how people & corporations behave & the choices they make. What's the point in changing the limits if you don't change what you intend to do about it when they're exceeded?
    • Money.

      CARB is funded by Cap and Trade. This means that they impose limits on things that are impossible to stop emitting, and force you to pay them for âoecreditsâ for pollution they think you owe. They then use that money to further their political power and send inspectors to verify their claims.

      The point is that they will continue to label smaller and smaller particles as problems, which adds to the amount of money they can charge. PM2.5 particles are basically emitted by every human activity.

      • by Anonymous Coward on Thursday February 08, 2024 @05:36AM (#64224130)

        1) CARB is not the EPA.

        2) There's an overwhelming amount of evidence about the harmfulness of soot and other small particulates. Studies from around the world, not just the USA, have found the same results.

        But look at you. None of the facts stopped you from throwing out the dumbest possible conspiracy theory with absolutely no evidence to support it.

        • Re: (Score:2, Insightful)

          by DrMrLordX ( 559371 )

          He never said it was CARB drafting these proposals. Stop and think about it for a moment.

          Otherwise nothing you've said disproves his other points.

        • Don't bother. The truth hurts fossil fuel company profits, therefore must be a lie.
          Ask any extraction industry shill
        • The EPAâ(TM)s version of Cap and Trade is CAMPD and is HEAVILY derived from input gained from CARBâ(TM)s experiences.

          You could, in fact, say that the EPAâ(TM)s Cap and Trade program is virtually modeled after CARB.

      • by VeryFluffyBunny ( 5037285 ) on Thursday February 08, 2024 @07:30AM (#64224258)
        Re: "The point is that they will continue to label smaller and smaller particles as problems, which adds to the amount of money they can charge. PM2.5 particles are basically emitted by every human activity." - There's a large & growing body of evidence detailing the harmful effects of PM2.5. It's in everyone's interests to reduce our exposure to them as much as possible. The question is, do we really need to burn so much stuff? And of the stuff we really do have to burn, how can we reduce the PM2.5 emissions?

        If you're referring to Carbon offsets and credits (You need to define acronyms if you use them - it's good etiquette) & cynically implying that this is some kind of bureaucratic money-grab, then who benefits? Cap'n'trade programmes were put forward & enthusiastically adopted by the private sector, namely Wall St. types & their ilk. They've made a lot of money for the private sector while showing little progress in actually reducing CO2 emissions or capturing CO2 from the environment. They've become more of a greenwashing mechanism than anything else. Now that's being more widely recognised, the mostly fraudulent system is increasingly being abandoned by large, public opinion sensitive corporations for fear of being associated with it.
      • by Miles_O'Toole ( 5152533 ) on Thursday February 08, 2024 @08:14AM (#64224328)

        Did you really not know why smaller particles are more of a problem than larger ones? I'll give you a hint: smaller particles can bypass lung defenses like cilia and mucous, and cross into the bloodstream. Larger particles are easier to expel.

      • Re: (Score:2, Troll)

        Is George Soros involved somehow?

        • Re: (Score:3, Funny)

          by formfeed ( 703859 )

          Is George Soros involved somehow?

          You bet!
          It goes like this:

          They of course need healthy children for their adrenochrome program.

          • They outlaw pollutants, because they harm children the most.
          • They want to get mercury and lead out of the environment, because it hurts kids the most (And they would lose the organic label.)
          • Of course they are interested in fewer kids getting shot.
          • They try to fund programs that make sure all kids have enough food. (Easy to see through this one.)

          In short, they try to do everything to make sure kids' future is s

    • by AmiMoJo ( 196126 )

      It helps people sue when the limits are exceeded. That's how some countries handle increasing the cost of pollution to the point where it is no longer a viable business model.

      • by mysidia ( 191772 )

        Yes... I think the biggest problem is they haven't reduced the limit by enough. 9 is still too much pollution, and enough to cause serious harm. The reduction Should be more. A more suitable maximum limit they should phase in would be 3 micrograms.

        AND the Requirements for Public auditable independent monitoring of each individual commercial entities' emissions, where emissions occur in business activity, should be extensive, And include Registration and monitoring systems for individual prod

        • The reduction Should be more. A more suitable maximum limit they should phase in would be 3 micrograms.

          Is there data showing that the benefit in reducing from 9 to 3 micrograms outweighs the cost of compliance?

          Typically regulations like this have to be costed to show that they're justifiable. Otherwise you'd presumably just set the limit to 0 (assuming PM2.5 is a substance where there's no safe level of exposure).

          • There is evidence that 0 is the amount humans can tolerate well, but the cost for getting to zero is way high. Human life is not worth that much.

          • by mysidia ( 191772 )

            Typically regulations like this have to be costed to show that they're justifiable. Otherwise you'd presumably just set the limit to 0

            No.. The reason you don't set the limit to 0 is that it is basically Impossible.

            I would say that the limit should be as low as possible, and the burden of proof rests on those who Don't want to meet a safer level to demonstrate that the goal is impractical.

            That is, zero is impossible unless you narrow the definition of emissions.
            You would emit PM2.5 particles into the air an

            • Well, yes, of course. Zero is impossible. And yes, we should baseline against other natural occurrences like people walking across their yard. What's the acceptable amount of PM2 above that baseline? 0.0001? 0.001? 0.01? 1? 3? 5?

              I once read a statement that stuck with me: "A chemist (or physicist depending on definition) can filter anything you give them down to the isotopic level if you give them sufficient budget." So when you say a company needs to justify that "no possible investment can be made...

              • by mysidia ( 191772 )

                What's the acceptable amount of PM2 above that baseline? 0.0001? 0.001? 0.01? 1? 3? 5?

                There is no need to make guesses about the acceptable amount; the WHO already has that guideline. above 5 micrograms per cubic meter is hazardous, and above 3 is detrimental.

                That's where costing comes in. Where's the evidence that 3 micrograms does in fact allow for ...

                No; just like you said, filtration is possible. And nobody's proven that it costs billions of dollars to run a filter on a combustion engine -- In fac

      • Sue? The rest of the world ain't 'Murica.
    • Pollution limits are regularly exceeded

      Are they? TFA says that only 15 out of the USA's 3000 counties are breaching the current PM2.5 limit.

  • by Dan East ( 318230 ) on Thursday February 08, 2024 @09:53AM (#64224536) Journal

    The sources vary: fossil fuel combustion, agriculture, and industrial processes all add to the load, as does wildfire smoke and dust.

    They need to regulate wildfires and dust storms, which will totally bring those incredibly major sources of global pollution to a halt.

    • by sinij ( 911942 )
      I read that now the main source of passenger vehicle particulate pollution is not tailpipe emissions but tires.
    • Are you arguing that wildfires and dust storms are the primary source of PM2.5 exposure?

  • by rickb928 ( 945187 ) on Thursday February 08, 2024 @10:37AM (#64224636) Homepage Journal

    The EPA's own site states that PM2.5 can consist of organic compounds, metals, and 'etc.'. Not terribly specific actually.

    Mind you, the EPA would prefer to focus on combustion products, since those are much easier to identify and the originators much easier to punish, since life on our planet will produce substantial particulate matter despite the most earnest legislative efforts to minimize that.

    More ugh.

    • by PPH ( 736903 )

      Yes. It includes some pollen as well. Let's get rid of those damned trees.

    • science reporting is just getting worse. a few days ago my sister handed me a newsweek article speaking of "Nitrogen pollution", in atmosphere and water. But it then said that this nitrogen pollution in the water is caused by fossil fuel combustion [chances are it didn't use the word combustion].
      Never mind that most nitrogen compounds contributing to water pollution come from fertilizers, ammonia etc. Never mind that the atmosphere is 78% nitrogen [N2]. Don't mention that NO, NO2, N2O & NH3 are all diff

      • And the State where these particle levels are at the worst is California. California, with its long coastline and frequent wildfires.
  • The issue with EPA is that insofar as particulate pollution they have completed their mission sometime in early 2000s. We have clean tailpipe emissions and clean power generation. Acid rains are history. Job well done.

    Unfortunately, I think they are now chasing diminishing returns at increasing costs. I have no idea, and EPA does not inform us, how much the latest tightening would cost. Would it make shipping more expensive because diesel semis have to adjust? Would it result in coal power plants to shut
    • by ZipNada ( 10152669 ) on Thursday February 08, 2024 @01:58PM (#64225200)

      >> EPA does not inform us, how much the latest tightening would cost

      Actually they do inform us, and it is broken out into the various forms of the pollution.
      https://www.epa.gov/system/fil... [epa.gov]

      • Did you notice figure 2-2? The one that shows this regulation is likely unnecessary as levels were already down to 10 and falling fast in 2019.

        Instead of imposing new rules on people based on 5-year-old data that was trending fast in the desired direction, how about a doublecheck to see if it is already down to 9? It is projected that there will be a net loss in jobs if this regulation goes through. It may be a very bad idea.

        • >> falling fast in 2019

          Do you mean Figure 2-2 on page 2-8? The grey line is PM2.5 levels and it has barely budged.

          "Decades of research have demonstrated that tiny particles are dangerous to people's health at nearly any concentration."

  • Soot is a historical human friend, as burning wood and coal has kept us warm in winter for millennia. Those fireplace fires are also mentally friendly as they require chopping logs and produce lovely glowing embers and dancing flames. How wouldn't you live longer and better because of that beauty vis' cold, sterile, hidden electro-matic heat producers. Humans have long accepted the "side-loaded" benefits of soot. Even Santa Claus doesn't mind
    • Somehow an old diesel idling outside the open window of my apartment is much less charming than the glowing embers and dancing flames of a wood-burning fire on a winter day.
    • Environmentalists hate Santa. He's too closely associated with Christianity, happiness, and presents.
  • by Anonymous Coward

    Here's a list of things that will have to be banned in order to meet the new standard:

    Charcoal grills
    Camp Fires
    Wood-burning stoves and furnaces
    Propane-fired pizza ovens
    Matches, Candles, and Fire Starters based on sawdust/wax
    Gas-powered lawn equipment that uses carburetors
    Oil-fired home heating furnaces
    Wood pellet stoves
    Home fireplaces

    There are probably many more things...

    • Amusingly, the paper includes data that shows this regulation is unnecessary (clear in figure 2-2). In 2019, it was already down to at most 10, and falling. So, things will be banned, jobs will be lost (net change in jobs is predicted to be negative), businesses will suffer, and since the data only goes up to 2019, levels may already be down to the required 9.
  • In the paper it says that these particles are created by wildfires. It also says that the problem is worst in California, which is plagued by wildfires and has been for decades.

Elliptic paraboloids for sale.

Working...