环保署批准首创空气质量规则：亚利桑那州马里科帕县企业扩建可用移动源减排额度抵偿
美国环境保护署（EPA）11月5日宣布，已最终批准一项首创的空气质量规则，使亚利桑那州马里科帕县的制造业、电厂及其他关键产业能够在不增加排放的前提下新建与扩建。
这项名为「第205号规则」（Rule 205）的规定由马里科帕县空气质量局设计，开辟了排放削减额度（ERC）的新来源：永久削减氮氧化物或挥发性有机物排放的移动源业主与运营者，可把削减量作为额度出售给希望在该县未达标区内新建或扩建的固定污染源。过去，排放削减额度只能在固定污染源之间生成与交易。
马里科帕县部分地区目前被列为2015年臭氧国家环境空气质量标准（NAAQS）的「中度」未达标区，大型固定污染源在区内新建或扩建，须依《清洁空气法》事先取得该县许可并抵偿新增排放。环保署认定，新方案符合《清洁空气法》第173条的法定要求，预计不会增加该地区空气排放。
环保署署长 Lee Zeldin 表示：「当最了解本地经济与环境的各州想出在环境要求内发展经济的创造性办法时，环保署应与它们合作、把事情办成。特朗普政府的环保署为批准这项符合常识的成果、造福马里科帕县与全县企业而自豪。」环保署西南太平洋区署长 Mike Martucci 表示，马里科帕县开发了一个务实、市场化的工具，让企业能够兴建与扩建，同时保持《清洁空气法》的保护不变。
（来源：美国环境保护署）
EPA Finalizes First-of-Its-Kind Air Quality Plan for Maricopa County, Arizona
The U.S. Environmental Protection Agency (EPA) announced on November 5 that it has taken a historic step by approving a first-of-its-kind air quality rule that will enable the building and expansion of manufacturing, power plants, and other critical industries without increasing emissions in Maricopa County, Arizona.
Known as "Rule 205," the Maricopa County Air Quality Department's regulation unlocks a new source of emission reduction credits (ERCs) for businesses to offset emissions, as required under the Clean Air Act (CAA). Mobile source owners and operators who permanently reduce nitrogen oxide or volatile organic compound emissions can trade those reductions as ERCs to stationary sources wishing to build or expand in the county's nonattainment area. Historically, ERCs have only been generated and traded between stationary sources.
Portions of Maricopa County are currently designated as "Moderate" nonattainment for the 2015 Ozone National Ambient Air Quality Standard (NAAQS), under which major stationary sources must obtain a preconstruction permit from the county and offset any increase in emissions. EPA found the new plan meets the statutory requirements of CAA section 173 and does not expect the rule to increase air emissions in the area.
"When states, that know their economies and environment best, come up with a creative way to grow their economies while working within environmental requirements, EPA should work with them to get it across the finish line. The Trump EPA is proud to approve this commonsense win for Maricopa County and businesses throughout the area," said EPA Administrator Lee Zeldin. EPA Pacific Southwest Regional Administrator Mike Martucci said Maricopa County developed a practical, market-based tool that allows businesses to build and expand while keeping Clean Air Act protections in place.
(Source: U.S. Environmental Protection Agency)
来源：美国环境保护署
发布：GSM·美国（发布链接）
图片来源：图：位于华盛顿的美国环保署总部 William J. Clinton 联邦大楼。Moreau1 摄，公共领域，经 Wikimedia Commons。 / Photo: EPA headquarters, the William J. Clinton Federal Building in Washington, D.C. Photo by Moreau1, public domain, via Wikimedia Commons.
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