Medical experts advise the public on the importance of wearing sunglasses to protect the eyes from UV; for adequate protection, experts recommend sunglasses that reflect or filter out 99-100% of UVA and UVB light, with wavelengths up to 400 nm.
In 2008, a KSLA news investigation found that a substance that fell to earth from a high altitude chemtrail contained high levels of Barium (6.8 ppm) and Lead (8.2 ppm) as well as trace amounts of other chemicals including arsenic, chromium, cadmium, selenium and silver.
Guidance for the use of. Boiler Chemicals in Organic Processing. Boiler chemicals are commonly used in food processing facilities to protect steam generating pipes and equipment from corrosion. PCO must review all boiler chemicals used in the production of organic products. Proper maintenance of boiler is required and maintenance records must be available at inspection.