Air Monitoring Annual Network Plan


Federal regulations require state and local agencies that conduct ambient air monitoring for regulatory purposes to submit an Annual Monitoring Network Report. The report must contain specific monitoring network information and be available for a 30-day public inspection period prior to submittal to the U.S. Environmental Protection Agency (U.S. EPA).


In years past, the Ventura County Air Pollution Control District prepared the Annual Monitoring Network Report for Ventura County. Ambient Air Monitoring Network Plans for years past are available here:

2016, 2015 Vol. 1 and 2015 Vol. 2, 2014, 2013, 2012, 2011, 2010, 2009, 2008 and 2007.


The most recent Ventura County information that meets the requirements specified in Title 40, Code of Federal Regulations (CFR), Part 58.10 (40 CFR 58.10) about ambient air monitoring can be found in a report compiled by the California Air Resources Board (ARB). A link to the most recent ARB Annual Monitoring Network Plan web page and plan is provided here:


This report covers the monitoring network for 25 of the 32 air districts within the ARB Primary Quality Assurance Organization (PQAO). A PQAO is the umbrella under which monitoring agencies are organized to ensure that monitoring is conducted according to a common set of procedures, using common calibration facilities and standards, with oversight by one air quality organization. ARB compiled the Ventura County portion of the Annual Monitoring Network Report with input from, and review by, the Ventura County Air Pollution Control District.