These files may not be suitable for users of assistive technology. Go to our accessibility statement for info. 2023 Air Quality Annual Status Report (ASR) PDF 7.21MB downloadPDF 7.21MBDownload 2022 Air Quality Annual Status Report (ASR) PDF 7.02MB downloadPDF 7.02MBDownload 2021 Air Quality Annual Status Report (ASR) PDF 7.11MB downloadPDF 7.11MBDownload 2020 Air Quality Annual Status Report (ASR) PDF 4.55MB downloadPDF 4.55MBDownload 2019 Air Quality Annual Status Report (ASR) PDF 4.9MB downloadPDF 4.9MBDownload