MaineTracking Network is ever-evolving. This page highlights the data topics we updated from 2023 to present.
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Annual update refers to a scheduled update that may include new years of data, new measures (e.g., hospitalizations, emergency department visits), new display types (e.g., near real-time, trend-charts), or even new data topics.
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Erratum refers to an identified data discrepancy. For an explanation of what took place and if changes in procedures were needed and added, please refer to the Details column.
Please email us at metracking@maine.gov or fill out the Contact Us form with any questions or comments.
| Date | Data Portal Topic | Type of Update | Details |
|---|---|---|---|
| 5/21/2025 | Air Quality | New Data Topic | 1977-2023 data about days that exceeded air quality index (AQI) thresholds for Ozone and 2002-2023 data about days that exceeded AQI thresholds for PM2.5. Near real-time data about current AQI, forecast data about maximum AQI for today and tomorrow, and modeled ground-level smoke data. |
| 12/13/2024 | Childhood Lead Poisoning | Annual Update | 2023 lead poisoning and testing data. |
| 10/28/2024 | Public Water Supply | New Data Topic | Selected contaminant testing data for community water supplies from 1999-2023, PFAS testing data from 8/2021-10/2024, and lead in school water data from 8/2021-6/2023. |
| 9/3/2024 | Carbon Monoxide Poisoning | New Data Topic | 2008-2019 case data about carbon monoxide (CO) poisoning cases, events, and deaths. 2012-2018 survey data about adults living in houses with CO detectors. Near real-time data about visits to the emergency department for potential CO exposure. |
| 5/20/2024 | Tickborne Diseases | Annual Update | 2021-2022 case numbers and rates. |
| 4/30/2024 | Childhood Lead Poisoning | Revised Displays | New high-risk area display layouts guide users to key trends and indicators. |
| 2/15/2024 | Childhood Lead Poisoning | Annual Update and Revised Displays | 2022 lead poisoning and testing data. New display layouts guide users to key trends and indicators. |
| 10/3/2023 | Radon | Erratum | Revised the Tables display due to incorrect data being displayed for 2016-2019, 2021 when looking at state-level Survey Results not stratified by income, education, or housing status. |
| 7/5/2023 | Heat-related Illness | Annual Update | 2019 survey data about air conditioning access. |
| 7/5/2023 | Radon | Annual Update | 2017-2021 survey data about radon testing and treatment behavior. |
| 7/5/2023 | Well Water | Annual Update | 2018-2021 survey data about well water use and testing behavior. 2013-2019 well water quality data from Maine's Health and Environmental Testing Laboratory. |