metals

Aluminum, barium, iron, titanium & sulfur content in collected rain/snow (μg/L)

Metal content (in micrograms per liter - μg/L) of rainwater and snow collected by Patrick Roddie in clean high sided glass bowls, sent in HNO3 buffered HDPE bottles to be analyzed by NELAP certified lab, McCampbell Analytical. Chain of custody documentation in the reports - pdfs available by clicking the dates.

Results are for elemental metals and metal ions derived from metal salts.

SF: The roof of my apartment building at 1935 Franklin Street, San Francsico, CA, 94109
OR: Chiloquin, south central Oregon, OR 97624
SB: Snowmelt collected in Strawberry, Stanislaus National Forest, CA
-: Metal not tested
*: Dilution factor 10 - results divided by a factor of 10
DateAlBaFeTiSSource
2018-04-1103800905203.61300SF
2018-04-05<14003.301300.65270SF
2018-03-20057005.308502.2360SF
2018-03-1204200404302.6310SF
2018-01-1803001105203.8-SF
2018-01-0322002130016-SF
2017-12-20<14004.101500.42-SF
2017-12-03<14009.601900.38-SF
2017-11-2501700502900.75-SF
2017-11-0801801102202.8-SF
2017-09-1128001940009.8-SF
2017-06-08025<1.102801.2-OR*
2017-05-30033002.202901.5-OR
2017-05-12016<1.101600.92-OR*
2017-01-01066<504502.8-OR
2016-12-27088<505903.1-OR
2016-12-23<14<5<2000.58-OR
2016-12-15<14<5<20<0.5-OR
2016-12-08<14<5<20<0.5-OR
2016-12-0434001127021-OR
2016-11-30<50<5<20<0.5-OR
2016-11-27<50<5<2001.2-OR
2016-11-12<50<503701.7-OR
2016-11-04<50<502101.1-OR
2016-10-27<50<5<20<0.5-OR
2016-10-24064005.604102.5-OR
2016-10-13084006.305703.7-OR
2016-09-22460034-23-OR
2016-07-08<50<5-<0.5-OR
2016-04-08052<5-02.1-SF
2016-04-04<50014---SF
2016-03-22<50006.4---SF
2016-03-21<50006.7---SF
2016-03-19540039---SF
2016-03-13<50<5-<0.5-SF
2016-03-10140016---SF
2016-03-09<50007.7---SF
2016-03-03170019-05.5-SF
2016-02-17019010---SF
2016-01-22<50001.1---SF
2015-12-10<50<5---SF
2015-11-24051011-02.4-SF
2015-11-09<50009---SF
2015-09-30<50<5-<0.5-SF
2015-06-10068005.5---SF
2015-04-05<50160---SF
2014-02-26<50006---SF
2014-01-24190015---SF
2013-11-19<50009.3---SF