In recent years, America's cement production industry has had to sustain and adapt to increased environmental regulation to lower emissions - with the Environmental Protection Agency (EPA) bringing in its National Emission Standards for Hazardous Air Pollutants (NESHAP) rule from September 2015. The US cement industry is now locked into negotiations with the EPA on limits and definitions of hazardous material. US cement producers are fast adapting to the new regulatory environment. CalPortland, the West Coast group, has put store on its sustainability credentials, which the EPA acknowledged this year with an environmental award for its energy efficiency initiatives, including its US$14M terminal storage dome at the Port of Anchorage. Last year, Alaska Basic Industries - CalPortland's joint venture with Alaska Sand & Gravel - commissioned the 40,000t facility alongside existing si- los with 20,000t capacity. Cement storage domes at port terminals have become more common across the US. CalPortland has similar storage solutions in Portland, Oregon and in Stockton, California. The efficiency benefits offered by the dome at Anchorage includes cutting the time it takes to unload a cement bulker, which can be up to two weeks, and the operational boon of freeing up the quay for other cargoes.
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机译：近年来，美国的水泥生产行业必须维持并适应日益严格的环境法规以减少排放-环境保护局（EPA）于2015年9月引入了《国家有害空气污染物排放标准（NESHAP）规则》。美国水泥行业目前正与美国环保署就有害物质的限制和定义进行谈判。美国水泥生产商正在迅速适应新的法规环境。西海岸集团CalPortland已将其可持续发展证书放在首位，美国环保署（EPA）今年因其能源效率计划而授予环保奖，其中包括其在安克雷奇港（Port of Anchorage）耗资1400万美元的码头储存圆顶。去年，CalPortland与Alaska Sand＆Gravel的合资企业Alaska Basic Industries投入了40,000吨的设施以及现有的20,000吨的筒仓。港口码头的水泥储存穹顶在美国已变得越来越普遍。 CalPortland在俄勒冈州的波特兰和加利福尼亚的斯托克顿也有类似的存储解决方案。安克雷奇穹顶提供的效率优势包括减少卸掉水泥散货船所需的时间（最多可缩短两周），以及为码头腾出其他货物的可乘之机。
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