{"id":26,"date":"2020-05-21T20:08:50","date_gmt":"2020-05-21T20:08:50","guid":{"rendered":"https:\/\/gero.usc.edu\/cbph\/cdr\/?page_id=26"},"modified":"2025-10-27T13:05:14","modified_gmt":"2025-10-27T20:05:14","slug":"air-pollution-o2-and-pm2-5","status":"publish","type":"page","link":"https:\/\/gero.usc.edu\/cbph\/cdr\/air-pollution-o2-and-pm2-5\/","title":{"rendered":"Air Pollution: O3 and PM2.5"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” id=”about” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][page_submenu alignment=”center” sticky=”true” bg_color=”#335d66″ link_color=”#ffffff”][page_link link_url=”#overview” title=”Overview” id=”1761595459510-10″ tab_id=”1761595459510-1″][vc_column_text][\/vc_column_text][\/page_link][page_link link_url=”#data-summary” title=”Data Summary” id=”1761595459520-5″ tab_id=”1761595459520-2″][vc_column_text][\/vc_column_text][\/page_link][page_link title=”Related Publications” id=”1761595459522-6″ tab_id=”1761595459523-10″ link_url=”#related-pubs”][\/page_link][\/page_submenu][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” equal_height=”yes” content_placement=”middle” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”3%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” id=”overview” advanced_gradient_angle=”0″ overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_color=”#5caaa8″ shape_divider_position=”bottom” bg_image_animation=”none” shape_type=”triangle” gradient_type=”default”][vc_column column_padding=”padding-6-percent” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”right” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text el_id=”overview”]The Fused Air Quality Surface Using Downscaling (FAQSD) Files is derived from data on Ozone (O3) and Particulate Matter 2.5 (PM2.5). The data provides predictions for national-scale annual average concentration of O3 (\u03bcg\/m3) and PM2.5 (\u03bcg\/m3) in the United States using monitoring data and Community Multiscale Air Quality (CMAQ) output.[\/vc_column_text][divider line_type=”No Line”][vc_gallery type=”image_grid” images=”263,265″ image_grid_loading=”default” layout=”2″ item_spacing=”default” gallery_style=”1″ load_in_animation=”none” img_size=”full”][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”50″ bottom_padding=”50″ text_color=”light” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][divider line_type=”No Line”][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#4e7a70″ scene_position=”center” top_padding=”30″ bottom_padding=”30″ text_color=”light” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” id=”data-summary” advanced_gradient_angle=”0″ overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=”” gradient_type=”default”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_custom_heading text=”Data Summary” use_theme_fonts=”yes” el_id=”data-summary”][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”100px” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”3%” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” advanced_gradient_angle=”0″ overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=”” gradient_type=”default”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]Dataset Name: <\/strong>Fused Air Quality Surface Using Downscaling (FAQSD) Files
\nData Source: <\/strong>United States Environmental Protection Agency (EPA)
\nYears: <\/strong>All data contains measures between 2002 and 2020
\nGeographies: <\/strong>Census Tract[\/vc_column_text][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][nectar_btn size=”large” open_new_tab=”true” button_style=”regular” button_color_2=”Accent-Color” icon_family=”iconsmind” text=”Download O3 Documentation” url=”https:\/\/gero.usc.edu\/cbph\/cdr\/wp-content\/uploads\/sites\/4\/2025\/10\/O3_CDR_Documentation_V3_2025-01-14.pdf” icon_iconsmind=”iconsmind-Download2″][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][nectar_btn size=”large” open_new_tab=”true” button_style=”regular” button_color_2=”Accent-Color” icon_family=”iconsmind” text=”Download PM2.5 Documentation” url=”https:\/\/gero.usc.edu\/cbph\/cdr\/wp-content\/uploads\/sites\/4\/2025\/10\/PM2.5_CDR_Documentation_2024-12-10.pdf” icon_iconsmind=”iconsmind-Download2″][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”.vc_custom_1761594913088{border-bottom-width: 20px !important;}” text_direction=”default”]O3 Suggested Citation:
\n<\/strong>Jennifer Ailshire, Jong Woo Nam, Eun Young Choi. 2024. Contextual Data Resource (CDR): United States Environmental Protection Agency Ozone FAQSD Files by Census Tract, 2002-2020, Version 3.0. Los Angeles, CA: USC\/UCLA Center on Biodemography and Population Health.<\/span><\/p>\n

PM2.5 Suggested Citation: <\/strong>
\nJennifer Ailshire, Jong Woo Nam, Eun Young Choi. 2024. Contextual Data Resource (CDR): United States Environmental Protection Agency Particulate Matter 2.5 FAQSD Files by Census Tract, 2002-2020, Version 3.0. Los Angeles, CA: USC\/UCLA Center on Biodemography and Population Health.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” id=”related-pubs” advanced_gradient_angle=”0″ overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_custom_heading text=”Related Publications” use_theme_fonts=”yes”][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n

    \n
  1. Choi, E. Y., & Ailshire, J. A. (2025). Ambient outdoor heat and accelerated epigenetic aging among older adults in the US. <\/span>Science Advances<\/span><\/i>, <\/span>11<\/span><\/i>(9), eadr0616. https:\/\/doi.org\/10.1126\/sciadv.adr0616<\/a><\/span><\/li>\n
  2. Yannatos, I., Stites, S., Brown, R. T., & McMillan, C. T. (2023). Contributions of neighborhood social environment and air pollution exposure to Black-White disparities in epigenetic aging. <\/span>PLOS ONE<\/span><\/i>, <\/span>18<\/span><\/i>(7), e0287112.<\/span> https:\/\/doi.org\/10.1371\/journal.pone.0287112<\/span><\/a><\/li>\n
  3. Ailshire, J., & Walsemann, K. M. (2021). Education Differences in the Adverse Impact of PM 2.5 on Incident Cognitive Impairment Among U.S. Older Adults. Journal of Alzheimer\u2019s Disease, 79(2), 615\u2013625. <\/span>https:\/\/doi.org\/10.3233\/JAD-200765<\/span><\/a><\/li>\n
  4. Courtney, M.G., Quintero, Y., & Godde, K. (2021). Assessing the roles of demographic, social, economic, environmental, health-related, and political factors on risk of osteoporosis diagnosis among older adults. Archives of Osteoporosis<\/i>, 16<\/i>(1), 177. https:\/\/doi.org\/10.1007\/s11657-021-01042-0<\/a><\/li>\n<\/ol>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#f4f4f4″ scene_position=”center” top_padding=”3%” constrain_group_1=”yes” bottom_padding=”3%” top_padding_tablet=”5%” constrain_group_3=”yes” bottom_padding_tablet=”5%” top_padding_phone=”10%” constrain_group_5=”yes” bottom_padding_phone=”10%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” advanced_gradient_angle=”0″ overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_color=”#00a79d” shape_divider_position=”bottom” shape_divider_height=”500″ bg_image_animation=”none” shape_type=”curve_opacity” gradient_type=”default”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text]\n

    Data Sources<\/h3>\n
    \n
    \n
    \n

    United States Environmental Protection Agency (EPA). RSIG and FAQSD Files, https:\/\/www.epa.gov\/hesc\/rsig-related-downloadable-data-files<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”center” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][nectar_btn size=”large” button_style=”regular” button_color_2=”Accent-Color” icon_family=”none” text=”Data Access” url=”https:\/\/gero.usc.edu\/cbph\/cdr\/using-data\/”][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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