"A series of qualitative chemical tests and deductions now confirm without doubt the presence of significant amounts of barium within atmospheric samples. Citizens may now begin the process of collecting the sample materials for formal submission to public environmental agencies and private labs for identification. The testing process can be done at modest expense and the results from laboratory analysis can now be qualitatively and independently verified without great difficulty. Any testing service employed will need to be able to demonstrate no vested interest in the outcome of the results, accuracy of method, and the willingness to have the testing process independently monitored.

The material under analysis has been collected by a plate ionizing filter; it may also be collected with conventional fiber filtration over a longer period of time. HEPA filter collection and subsequent electrolysis of the filter material placed in distilled water has also proven successful. Extended time periods may be required to collect a sufficient volume of material for electrolytic processing and external testing preferences. Readers are referred to previous articles1,2 for two methods of collection. The use of electrolysis is significant in producing a final compound for testing purposes. The solid materials (powder/ crystals) collected by the plate ionizing filter, assuming they satisify the test procedures described on this page, will be sufficient for laboratory analysis. Qualitative chemical tests and flame tests positively establish the significant presence of barium compounds within the atmospheric sample.

Citizens with sufficient environmental concern are encouraged to begin this process of sample collection and identification, along with the documentation of the responses of both public and private environmental services."
http://www.carnicominstitute.org/articles/flame1.htm