Air Monitoring Station Average Daily Readings

Archived information from the 2011 Japan Radiation Event

This information is no longer being updated as this is not considered a local hazard at this time.

All measurements in gross beta.

Date	Portland	Corvallis	Eureka, CA
05/12/2011	19.6	22.0	7.0
05/08/2011	11.7	17.0	9.8
05/05/2011	15.8	16.9	17.8
05/02/2011	27.15	22.86	22.93
Monthly Average	15.6	17.4	13.4

Date	Portland	Corvallis	Eureka, CA
04/27/2011	10.9	16.8	6.4
04/25/2011	17.9	21.0	6.5
04/21/2011	No data*	18.5	6.5
04/17/2011	13.1	17.9	No data*
04/14/2011	13.1	15.9	6.1
04/10/2011	15.8	20.1	16.4
04/07/2011	17.3	24.0	10.7
04/06/2011	11.3	16.3	12.0
04/05/2011	14.1	15.7	13.2
04/04/2011	No data*	28.8	27.8
04/01/2011 - 04/03/2011	No data*	19.5	15.4
Monthly Average	14.6	19.2	10.7

Date	Portland	Corvallis	Eureka, CA
03/31/2011	19.6	18.4	15.3
03/30/2011	13.1	15.0	22.8
03/29/2011	13.7	16.7	16.9
03/28/2011	No data*	20.0	15.0
03/27/2011	No data*	15.8	14.3
03/26/2011	17.3	17.4	14.1
03/25/2011	40.6	19.5	12.5
03/24/2011	20.2	21.4	12.0
03/23/2011	19.5	19.6	13.5
03/22/2011	14.9	24.5	15.3
03/21/2011	23.4	32.3	15.2
03/20/2011	18.3	21.4	24.0
03/19/2011	16.7	24.7	12.7
03/18/0211	16.5	18.5	11.7
03/17/2011	13.9	20.5	13.7
03/16/2011	12.8	18.7	9.7
03/15/2011	14.6	19.3	14.4
03/14/2011	46.6	19.3	15.6
03/13/2011	19.4	23.2	10.5
03/12/2011	17.5	21.9	13.5
03/11/2011	19.0	19.8	20.2
03/10/2011	15.3	15.6	11.0
03/09/2011	13.5	14.7	12.4
03/08/2011	14.3	18.3	12.7
03/07/2011	24.8	31.3	12.7
03/06/2011	23.7	25.8	13.3
03/05/2011	18.0	22.6	13.0
03/04/2011	15.2	24.2	12.2
03/03/2011	12.7	17.6	17.7
03/02/2011	20.4	21.7	11.0
03/01/2011	20.4	20.5	10.3
Monthly Average	19.2	20.6	14.2

*No data available from EPA