EPA Facility Registry Service - Major Integrated Compliance Information System for Air Facilities (AIR MAJOR)

Overview This layer provides location and facility identification information facilities that link to dischargers of air pollutants from the Integrated Compliance Information System for Air (AIR). ICIS-Air (AIR) – AIR is the modernization of multiple systems, Air Facility System (AFS) and the Integrated Compliance Information System (ICIS). AIR contains enforcement, compliance, and permit data for stationary sources of air pollution regulated by the EPA, State, and Local air pollution agencies. A facility is classified as a Major Discharger if: a) Actual or potential emissions are above the applicable major source thresholds, or b) Actual or potential controlled emissions > 100 tons/year as per Alabama power decision, or c) Unregulated pollutant actual or potential controlled emissions > 100 tons/year as per Alabama power decision. To learn more about ICIS-AIR visit the overview webpage. The Facility Registry Service (FRS) provides quality facility data to support EPA's mission of protecting human health and the environment by identifying and geospatially locating facilities, sites, or places subject to environmental regulations of environmental interest. Facility data is improved with geospatial processing of incoming data and data curation tools to provide an integrated, dataset to partners and the public through a variety of methods and products. For more detailed information about these facilities, use the FRS Query tool. Feature Layer Major Air Facilities: This layer identifies facilities classified as major dischargers of air pollutants. Facilities included meet criteria such as actual or potential emissions exceeding regulatory thresholds or specific emission limits as defined under relevant environmental policies. The layer provides comprehensive attributes, including facility identification, physical location (address, city, county, state), regulatory program affiliations, and compliance status. It also includes geospatial data like latitude and longitude standardized to NAD83 and hydrologic unit codes to support environmental and geographic analyses. Geographic Coverage The data covers all major air emission sources throughout the United States, including its territories and tribal areas. Use Cases Environmental regulators and policymakers can use this dataset to monitor compliance and target inspections. Researchers and environmental organizations can analyze air pollution sources and trends geographically. The public and stakeholders can access up-to-date facility information through linked EPA web pages to promote transparency and community awareness. Licensing and Access Data is in the public domain as provided by the U.S. EPA, with recommended review of metadata files for usage limitations. The dataset is maintained with quality control to ensure accuracy and relevance for environmental protection purposes.### 概述 本图层提供来自空气综合合规信息系统（Integrated Compliance Information System for Air，简称AIR）中与空气污染物排放源相关的设施的位置与标识信息。 ICIS-Air（即AIR）是多个系统的现代化升级成果，涵盖空气设施系统（Air Facility System，AFS）与综合合规信息系统（Integrated Compliance Information System，ICIS）。AIR包含由美国环境保护署（U.S. Environmental Protection Agency，EPA）、各州及地方空气污染监管机构管控的固定空气污染源的执法、合规与许可数据。 满足以下任一情形的设施将被归类为大型排放源（Major Discharger）：a）实际或潜在排放量超过适用的重点源阈值；b）根据阿拉巴马州电力案裁决，实际或潜在经治理的排放量超过100吨/年；c）根据阿拉巴马州电力案裁决，未受监管污染物的实际或潜在经治理排放量超过100吨/年。如需了解ICIS-AIR的更多详情，请访问其概述网页。 设施登记服务（Facility Registry Service，FRS）通过识别并以地理空间方式定位受环境监管或具有环境关注度的设施、场地或场所，为EPA保护人类健康与环境的使命提供高质量的设施数据。通过对传入数据进行地理空间处理并借助数据整理工具优化设施数据，最终通过多种方式与产品向合作方及公众提供一体化数据集。如需获取这些设施的详细信息，请使用FRS查询工具。 ### 要素图层：重点空气排放源 本图层用于识别被归类为空气污染物大型排放源的设施。纳入本图层的设施需满足相关环境政策中规定的实际或潜在排放量超过监管阈值或特定排放限值的标准。本图层提供全面的属性信息，包括设施标识、实体位置（地址、城市、县、州）、监管项目隶属关系以及合规状态。同时包含标准化至NAD83坐标系的经纬度、水文单元代码等地理空间数据，以支持环境与地理分析工作。 ### 地理覆盖范围 本数据集覆盖美国全境（含其领土及部落区域）内的所有重点空气排放源。 ### 应用场景 环境监管人员与政策制定者可借助本数据集开展合规监测并精准安排检查工作；研究人员与环保组织可开展空气污染源的地理分布与趋势分析；公众及利益相关方可通过关联的EPA网页获取最新的设施信息，以提升透明度与社区环保意识。 ### 许可与获取方式 本数据集由美国EPA提供，属于公共领域数据，建议使用者查阅元数据文件以了解使用限制。本数据集通过质量控制流程进行维护，以确保数据的准确性与相关性，满足环境保护工作的需求。