Houston Crawford C407 Data by Site by Date (all parameters)
There is no data available at Houston Crawford C407 for Wednesday, December 4, 2024.
This monitoring site was brought onto the TCEQ real-time data collection system on Tuesday, February 22, 2000 and was deactivated on Tuesday, March 27, 2001.
Please select a date from February 22, 2000 to March 27, 2001. Click on the Generate Report button when you are through.
If you have selected a date within the range above, and there is still no data available, there is a possibility that communications with the monitoring site are temporarily down. When communications are restored, the data will become available. While rare, it is possible that no data has been collected for the date you selected. This only occurs if there is a power outage or other serious problem at the monitoring site.
PLEASE NOTE: This data has not been verified by the TCEQ and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from TCEQ ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.
Following EPA reporting guidelines, negative values may be displayed in our hourly criteria air quality data, down to the negative of the EPA listed Method Detection Limit (MDL) for the particular instrument that made the measurements. The reported concentrations can be negative due to zero drift in the electronic instrument output, data logger channel, or calibration adjustments to the data. Prior to 1/1/2013, slightly negative values were automatically set to zero.