Air Quality
https://www.cdc.gov/air/resources.htm

Bed Bug
Bed Bug Handbook

Lice are not a public health threat. DSHS does not monitor or track cases of head lice because they do not carry disease. It is up to each school district to create head lice policies and procedures if they choose. Talk with the school nurse or school administration to determine the school district's policy and procedures. 
Managing Head Lice in School Settings and at Home | Texas DSHS

Mold
Mold and Renter’s Rights in Texas
Consumer Protection - mold.pdf (texas.gov)

Water Quality
Homepage - Texas Commission on Environmental Quality - www.tceq.texas.gov

Public Nuisance Complaints
Public Health Sanitation Program