English: This is a graph of PM 2.5 concentration vs time, near the intersection of 30th Street and M Street in Bakersfield, CA, USA. There is a seasonal variation of pollution with time.
{{Information |Description={{en|1=This is a graph of PM 2.5 concentration vs time, near the intersection of 30th Street and M Street in Bakersfield, CA, USA. There is a seasonal variation of pollution with time.}} |Source={{own}} |Author=[[User:Lldenke|L