Published: January 9, 2020 Updated: January 13, 2020 Heya San Francisco! My girlfriend in San Francisco just called me with this question, and I get this exact question often enough that I wanted to write this post — so I don’t have to dig for the city’s resource information (which is down towards the bottom…
Middle school entry door (touched by hundreds of children every single day!), painted area is positive for lead at 773 ppm lead. Tested with an XRF instrument in 2013. This lead level is a reading through several layers of paint and is likely reflective of an old leaded layer of paint underneath several newer layers…
Middle school door side (touched by hundreds of children every single day!), positive for lead at 31,100 ppm lead. Tested with an XRF instrument in 2013. The amount of lead that is considered TOXIC for an item intended to be used by children on a regular basis (like a toy) is anything 90 parts per…
Middle school door metal handle (touched by hundreds of children every single day!), positive for lead at 59,100 ppm lead. Tested with an XRF instrument in 2013. The amount of lead that is considered TOXIC for an item intended to be used by children on a regular basis (like a toy) is anything 90 parts…