Around 6.5 million deaths globally are attributed each year to
poor air quality inside and outside, making it the world's fourth - largest threat to human health, behind high blood pressure, dietary risks and smoking.
Four dogs were chained outside without adequate food, water, or shelter and approximately 18 were
inside the house that had extremely
poor air quality due to high ammonia levels; the floor was plywood subflooring soaked with urine, causing dangerously high ammonia levels irritating to the eyes, nose, and throat.