Law and the Environment : Environmental Lawyer & Attorney : Foley Hoag Law Firm : Boston, Washington D.C.

Last week, I posted about improvements in air quality since 1990. It’s a good thing air quality is improving, because, at the same time, the science keeps suggesting that ever lower pollutant levels pose risks to public health. The latest news was EPA’s draft review of the appropriate level at which to set the National Ambient Air Quality Standard for particulate matter.

EPA most recently revised the PM standard in 2006, setting it at 15 ug/m³, notwithstanding the staff recommendation to set the standard at between 13 ug/m³ and 14 ug/m³. As I have discussed, EPA’s decision was struck down by the D.C. Circuit Court of Appeals, because EPA could not justify its departure from the scientific recommendations it has received.

Now, the draft Policy Assessment has concluded that the 15 ug/m³ is not sufficiently stringent. The draft suggested two ranges for potential revised standards:

Annual standard of between 12 and 13 ug/m³; 24-hour standard of 30 to 35 ug/m³

Annual standard of between 10 and 11 ug/m³; 24-hour standard of 25 to 30 ug/m³

A more stringent PM standard is going to have significant implications. These include:

1.         Strengthening the logic for three pollutant legislation. First, the health effects described in the Policy Assessment suggest the need for such legislation, because the targets of three pollutant legislation are among the big contributors to PM emissions. Second, in order to meet a more stringent standard, reductions of the sort contemplated in three pollutant legislation are going to be necessary.

2.         It may be simply a restatement of the first point, but the pressure on old fossil fuel plants, particularly old coal plants, is only going to increase as a result of the Policy Assessment. In this context, it is noteworthy that, at a seminar on Friday, Gina McCarthy, EPA’s Assistant Administrator for Air and Radiation, in discussing the number of rules EPA is obligated to issue in the next 12-18 months, indicated her sense that the biggest impact on GHG emissions might not result from EPA’s tailoring rule and direct regulation of GHGs, but would instead result from the secondary effect from the full panoply of traditional pollutant regulations on EPA’s docket. In other words, once EPA is done with new CAIR regulations, MACT rules, and SIP revisions following a more stringent PM standard, the economics of old coal plants will be such as to force switching to more climate-friendly energy sources, even aside from direct GHG regulation.

I think that Gina is probably right, and I’m particularly appreciative that she is able to take the long view. In the short run, coal remains cheap. Moreover, traditional control technologies for SO₂ and NO_x require energy, increase station service, and thus actually do not help with GHG reductions. Nonetheless, if one does take the long view, more stringent traditional regulation, including that resulting from more stringent PM standards, will increase the cost of fossil fuels and help drive the economy towards energy sources that are more climate friendly.

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We have previously posted about EPA’s efforts to roll back regulatory changes made by the Bush Administration, particularly with respect to the NSR program. There is no question that the roll-back continues. This week, EPA announced it would review three separate NSR rules promulgated by the Bush administration. These include:

The “reasonable possibility” rule, which identified when major sources must keep records even if a contemplated change is not expected to trigger NSR review

The fugitive emissions rule, which limited by source category when fugitive emissions must be taken into account in determining NSR applicability

The PM_2.5 rule, which included provisions regarding submittal of state implementation plans, or SIPs, for PM _2.5 compliance. One particular issue of concern is the provision which deferred until 2011 the date by when states must account for emissions of gases, emitted from coal-fired power plants, which may condense to form PM _2.5.

In a narrow way, EPA’s decision to revisit these rules will likely lead to lower emissions of air pollutants subject to NSR in some cases.  At a broader level, these reviews ignore the fundamental problems with the NSR program and whether the NSR program is a dinosaur of command and control regulation that is not a cost-effective of achieving emissions reductions.

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In a decision that could have significant impact on states’ efforts to limit cross-border pollution, Judge Lacy Thornburg of the District Court for the Western District of North Carolina issued an affirmative injunction against the TVA this week, requiring it to install pollution control equipment at its facilities located nearest to North Carolina and imposing specific emissions limits from those facilities. The basis for the injunction was a finding, after trial, that the facilities created a public nuisance as a result of the air pollution transported from those facilities to North Carolina.

The decision is notable for a number of the findings and holdings.

• Generally speaking, compliance with regulations does not preclude a finding that air emissions constitute a nuisance. (The Court applied the nuisance law of the states in which the plants were located.)
• Ozone and PM_2.5 can create adverse health impacts at concentrations below the National Ambient Air Quality Standards (NAAQS). This suggests that facilities contributing to concentrations of air pollutants can be subject to an injunction requiring the facility to decrease emissions, even if the area is in attainment of the NAAQS.
• The Court looked to survey data indicating that Blue Ridge Parkway visitors would pay $328 in annual taxes in order to improve visibility. As many readers will know, this kind of survey research is extremely controversial and may lead to some extraordinary damages findings.
• The Court declined to impose an injunction against TVA facilities that were not proximate to North Carolina, essentially on the ground their impacts on North Carolina were de minimis. The court found that those plants against which an injunction was entered contributed to somewhere between 5% and 10% of ambient contaminant concentrations. The other plants contributed less 0.1% of ambient concentrations.
• The Court imposed a stringent schedule by when pollution control equipment must be installed. The Court gave the TVA 27 months to install scrubbers and 21 months to install SCRs. This time frame was substantially shorter than that proposed by the TVA.

The one piece of good news for generating plants was the court’s causation analysis with regard to more distant plants. That analysis, if followed, suggests it would be extremely hard for a public nuisance plaintiff to prevail in a global warming case, since the causative contribution of any facility or even group of facilities to the global warming problem is almost certain to be even more attenuated than for those TVA plants distant from North Carolina.

The decision undoubtedly gives downwind states a substantial hammer against upwind sources of contamination (and could be applied to water pollution cases as well as air pollution). Indeed, in the current set of Congressional negotiations, industrial interests could conceivably be tempted to accept more stringent emissions limits in return for preemption of state nuisance laws. It will be interesting to see how this plays out in Congress.

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