Air Quality Monitoring | Air Quality | Port of Los Angeles

Particulate Data

The following charts provide summaries of the particulate data measured at the four community air monitoring stations within the Port of Los Angeles network. Although the data are collected as integrated samples on EPA’s designated schedule (every third day), the tables depict monthly averages and the graphs depict annual averages. More detailed graphs showing monthly variations are archived, by year, below. These averages reduce the day-to-day variability in the data, making it easier to determine the longer-term data trends. As evident in the graphs and tables, the level of particulates in the atmosphere varies considerably. These variations occur for a number of reasons, including the time of year and changes in the weather and Port operations.