Radiation Readings in the U.S.

A Conelrad production, this site has been created for private citizens of the U.S. (mostly) with geiger counters to post their geiger measurements in response to the ongoing nuclear threat at Fukushima Daiichi, Japan.

Quick thanks

Just wanted to thank those of you who continue to post your readings to this site.  While most of the world has apparently decided that the nuclear disaster in Japan is over, it’s nice to know that you people still are keeping a vigilant watch over the readings of radiation that fall here in the U.S.  It is my hope that in the future, the data provided via this site can be used as evidence of the increase, decrease, or null-total of radiation since the March 11, 2011 Fukushima disaster began.  

PACIFIC CITY OR 97135

10/22/11

Reading #1: 00.1237 µSv/hr
Reading #2: 00.1253 µSv/hr
Reading #3: 00.131 µSv/hr
Reading #4: 00.1213 µSv/hr
Reading #5: 00.146 µSv/hr

Avg. of 5 Readings: 00.12946 µSv/hr

Coos Bay, Oregon - 97420

October 24, 2011 @ 2:47 PM PDT
~~~~~~~~~~~~~
Ambient/”background” office radiation
~~~~~~~~~~~~~
Reading #1:_00.10 µSv/hr
Reading #2:_00.11 µSv/hr
Reading #3:_00.09 µSv/hr
Reading #4:_00.13 µSv/hr
Reading #5:_00.11 µSv/hr

Avrg. of 5: 00.108 µSv/hr

This ambient reading was subtracted from today’s
sample reading, which was either collected using
the “charged wire” method developed in 1908-1915
or using the filter from a 5 cubic meter air draw.

~~~~~~~~~~~~~
See http://webpages.charter.net/123goto/map.htm
for methods, earlier readings, air sampling and
environmental data for these readings.

PACIFIC CITY OR 97135

10/20/11

Reading #1: 00.1263 µSv/hr
Reading #2: 00.132 µSv/hr
Reading #3: 00.1323 µSv/hr
Reading #4: 00.145 µSv/hr
Reading #5: 00.147 µSv/hr

Avg. of 5 Readings: 00.137 µSv/hr

Coos Bay, Oregon - 97420

October 21, 2011 @ 2:47 PM PDT
~~~~~~~~~~~~~
Ambient/”background” office radiation
~~~~~~~~~~~~~
Reading #1:_00.09 µSv/hr
Reading #2:_00.11 µSv/hr
Reading #3:_00.11 µSv/hr
Reading #4:_00.11 µSv/hr
Reading #5:_00.09 µSv/hr

Avrg. of 5: 00.102 µSv/hr

This ambient value was subtracted from today’s
sample reading, which was collected using the
"charged wire" method developed in 1908-1915.

~~~~~~~~~~~~~
see http://webpages.charter.net/123goto/map.htm
for methods, earlier readings, air sampling and
environmental data for these readings.

10/21/2011, 8:25pm EDT, Radiation Readings, Kentucky

Reading #1:  0.19 µSv/hr

Reading #2:  0.19 µSv/hr

Reading #3:  0.26 µSv/hr

Reading #4:  0.15 µSv/hr

Reading #5:  0.20 µSv/hr

Avg. of 5 Readings:  0.198 µSv/hr

…readings were all over the page with this one. 

PACIFIC CITY OR 97135

10/17/11

Reading #1: 00.1177 µSv/hr
Reading #2: 00.149 µSv/hr
Reading #3: 00.131 µSv/hr
Reading #4: 00.1243 µSv/hr
Reading #5: 00.127 µSv/hr

Avg. of 5 Readings: 00.13 µSv/hr

PACIFIC CITY OR 97135

10/14/11

Reading #1: 00.127 µSv/hr
Reading #2: 00.13 µSv/hr
Reading #3: 00.153 µSv/hr
Reading #4: 00.1717 µSv/hr
Reading #5: 00.1213 µSv/hr

Avg. of 5 Readings: 00.14 µSv/hr

Coos Bay, Oregon - 97420

October 15, 2011 @ 8:20 PM PDT
~~~~~~~~~~~~~
Ambient/”background” office radiation
~~~~~~~~~~~~~
Reading #1:_00.11 µSv/hr
Reading #2:_00.12 µSv/hr
Reading #3:_00.11 µSv/hr
Reading #4:_00.11 µSv/hr
Reading #5:_00.11 µSv/hr

Avrg. of 5: 00.112 µSv/hr

Avrg. of 15 such readings (40 minutes) was
00.1107 uSv/hr and implied that 5 readings
(13.3 minutes) averaged are good to +/-00.006

~~~~~~~~~~~~~
see http://webpages.charter.net/123goto/map.htm
for methods, earlier readings, air sampling and
environmental data for these readings

Southern OR

10/14/2011 Medford, Oregon 7:44 pm

Reading #1: .08 uSv/hr

Reading #2:  .08 uSv/hr

Reading #3:  .10 uSv/hr

Reading #4:  .08 uSv/hr

Reading #5:  .09 uSv/hr

Average:  .086 uSv/hr

PACIFIC CITY OR 97135

10/11/11

Reading #1: 00.1375 µSv/hr
Reading #2: 00.1353 µSv/hr
Reading #3: 00.126 µSv/hr
Reading #4: 00.1237 µSv/hr
Reading #5: 00.1323 µSv/hr

Avg. of 5 Readings: 00.131 µSv/hr

PACIFIC CITY OR 97135

10/9/11

Reading #1: 00.13 µSv/hr
Reading #2: 00.1513 µSv/hr
Reading #3: 00.122 µSv/hr
Reading #4: 00.1643 µSv/hr
Reading #5: 00.141 µSv/hr

Avg. of 5 Readings: 00.142 µSv/hr

STORMY / SOME SUN

PACIFIC CITY OR 97135

10/4/11

Reading #1: 00.1323 µSv/hr
Reading #2: 00.1243 µSv/hr
Reading #3: 00.1337 µSv/hr
Reading #4: 00.1117 µSv/hr
Reading #5: 00.1543 µSv/hr

Avg. of 5 Readings: 00.131 µSv/hr

9/7/11

Reading #1: 00.1387 µSv/hr
Reading #2: 00.1233 µSv/hr
Reading #3: 00.1297 µSv/hr
Reading #4: 00.1303 µSv/hr
Reading #5: 00.1307 µSv/hr

Avg. of 5 Readings: 00.1305 µSv/hr