From: Respirable stone particles differ in their ability to induce cytotoxicity and pro-inflammatory responses in cell models of the human airways
Particle sample
Endotoxin content (EU/mg)
Quartzite
0.127
Anorthosite
–
Rhomb porphyry
0.101
Dacite
0.097
Quartz diorite
0.076
Hornfels
0.132
α-quartz