LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY | Secretary Aurelia S. Giacometto
A DEPARTMENT OF THE STATE OF LOUISIANA
Brief Disclaimer
The data and information provided has been collected by automated monitors and has not been subjected to a quality assurance review to determine accuracy. The application of quality assurance and verification procedures to the data and information may result in differences between what is currently provided and what will become the official record. Additionally, due to quality assurance, the data may be amended, without notice, at any time. At this time, the data is provided as a "public service" on an "as is" basis without warranty, whether express or implied, as to its quality, accuracy, suitability, reliability, usability, completeness, timeliness, or applicability for particular purposes.
Complete Disclaimer
Basic- information and reliability
Continuous Data
The data and information presented on the LDEQ webpage have been collected on a near “real-time” basis by automated monitors and represents the hourly data in its most current values. The data is displayed as soon as practical after the end of each hour; indicating the end time of a sample in Central Time. For example, values shown for the 8:00 AM one-hour average are based on measurements taken from 7:00 AM to 8:00 AM.
For the continuous monitors, only hourly data and 5-minute sulfur dioxide (SO2) data are quality reviewed and validated. Other data received from the continuous monitors, including 10- minute data and other 5-minute averages, is not quality reviewed and validated. Because data is presented in near “real-time,” data representing the most recent six weeks has not been completely quality reviewed and validated.
Data provided for continuous PM2.5 is not NAAQS comparable. At some sites, PM2.5 is also measured using the Federal Reference Method (FRM) that utilizes a sample collected on a filter. Data from FRM PM2.5 samplers is NAAQS comparable.
The data and information provided has been collected by automated monitors and has not been subjected to a quality assurance review to determine accuracy. The application of quality assurance and verification procedures to the data and information may result in changes without notice. The results from these monitors alone cannot be used to infer health effects.
Limitations of information
The Department makes every effort to assert the validity and integrity of the data, but data can be affected by equipment malfunctions, technical difficulties, and other unforeseen circumstances. All air monitoring equipment, including continuous instruments, is subject to intermittent fluctuations, or spikes, which can cause invalid readings. The equipment may be disrupted for periodic maintenance and quality checks as well as power failures and instrument malfunctions. Local environmental conditions can vary widely across the region and may also have an impact on the air quality measurements and the subsequent data. Additionally, due to quality assurance, the data may be amended, without notice, at any time. The data may be revised or invalidated after review.
Limiting liability of the agency
The LDEQ has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the LDEQ or its agents be liable in contract, tort, or otherwise for any loss, injury, or damage arising directly or indirectly from the supply of this data. At this time, the data is provided as a "public service" on an "as is" basis without warranty, whether express or implied, as to its quality, accuracy, suitability, reliability, usability, completeness, timeliness, or applicability for particular purposes. However, all validated data is complete and accurate for all pollutants to the best of our knowledge, taking into consideration the quality assurance findings. Use of LDEQ’s air quality monitoring data is at the user’s discretion and should be done with caution.