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Laredo Region Monitor Summary

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Parameter Monitored POC First Valid Data Monitor Status
Laredo Vidaurri C44/AFGP144/P244
    Carbon Monoxide 1 R Feb 4, 1998 Active
Ozone 1 R Feb 4, 1998 Active
Wind Speed 1 Feb 3, 1998 Active
Resultant Wind Speed 1 Feb 3, 1998 Active
Resultant Wind Direction 1 Feb 3, 1998 Active
Maximum Wind Gust 1 Feb 3, 1998 Active
Standard Deviation of Horizontal Wind Direction 1 Feb 3, 1998 Active
Outdoor Temperature 1 Feb 3, 1998 Active
Solar Radiation 1 Aug 13, 2002 Deactivated Jul 21, 2011
PM-10 (Standard Conditions) 4 N Jan 7, 2004 Deactivated Dec 17, 2012
Laredo Bridge C66/AF173
    Carbon Monoxide 1 R Sep 22, 1999 Deactivated Dec 31, 2017
Wind Speed 1 Sep 22, 1999 Active
Resultant Wind Speed 1 Sep 22, 1999 Active
Resultant Wind Direction 1 Sep 22, 1999 Active
Maximum Wind Gust 1 Sep 22, 1999 Active
Standard Deviation of Horizontal Wind Direction 1 Sep 22, 1999 Active
Outdoor Temperature 1 Sep 22, 1999 Active
PM-2.5 (Local Conditions) 3 N Feb 4, 2000 Deactivated Aug 13, 2002
World Trade Bridge C313
    PM-2.5 (Local Conditions) 1 R Mar 27, 2018 Active
PM-2.5 (Local Conditions) 3 N Aug 13, 2002 Deactivated Jan 1, 2007
PM-2.5 (Local Conditions) Acceptable 3 Jan 1, 2007 Deactivated Mar 1, 2018
Eagle Pass C319/C655
    Wind Speed 1 Aug 23, 2005 Active
Resultant Wind Speed 1 Aug 23, 2005 Active
Resultant Wind Direction 1 Aug 23, 2005 Active
Maximum Wind Gust 1 Aug 23, 2005 Active
Standard Deviation of Horizontal Wind Direction 1 Aug 23, 2005 Active
Outdoor Temperature 1 Aug 23, 2005 Active
Relative Humidity 1 Aug 27, 2005 Deactivated Mar 20, 2006
Visibility 1 Aug 23, 2005 Active
PM-2.5 (Local Conditions) 1 R Mar 28, 2018 Active
PM-2.5 (Local Conditions) 3 N Aug 23, 2005 Deactivated Jan 1, 2007
PM-2.5 (Local Conditions) Acceptable 3 Jan 1, 2007 Deactivated Mar 26, 2018
Lake Amistad C321  Deactivated: Jul 22, 2005
    Wind Speed 1 Aug 4, 2004 Deactivated Jul 22, 2005
Resultant Wind Speed 1 Aug 4, 2004 Deactivated Jul 22, 2005
Resultant Wind Direction 1 Aug 4, 2004 Deactivated Jul 22, 2005
Maximum Wind Gust 1 Aug 4, 2004 Deactivated Jul 22, 2005
Standard Deviation of Horizontal Wind Direction 1 Aug 4, 2004 Deactivated Jul 22, 2005
Outdoor Temperature 1 Aug 4, 2004 Deactivated Jul 22, 2005
Del Rio KDRT C5017
    Extinction Coefficient 1 Sep 2, 2005 Active
Day/Night Flag 1 Sep 2, 2005 Active
Present Weather 1 Sep 2, 2005 Active
Present Weather Obscuration 1 Sep 2, 2005 Active
Wind Speed 1 Sep 2, 2005 Active
Resultant Wind Speed 1 Sep 2, 2005 Active
Resultant Wind Direction 1 Sep 2, 2005 Active
Maximum Wind Gust 1 Sep 2, 2005 Active
Standard Deviation of Horizontal Wind Direction 1 Sep 2, 2005 Active
Outdoor Temperature 1 Sep 2, 2005 Active
Dew Point Temperature 1 Sep 2, 2005 Active
Relative Humidity 1 Sep 2, 2005 Active
Visibility 1 Sep 2, 2005 Active
Precipitation 1 Sep 2, 2005 Active
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.
 N - Data from this instrument does not meet EPA quality assurance criteria and cannot be used for regulatory purposes.

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.