sanitarian
/sænɪˈteərɪən/Definitions
1. noun
A person who advocates for or promotes public health and sanitation, especially through education or policy.
“The city hired a team of sanitarians to improve the water quality and reduce the spread of diseases.”
2. adjective
Relating to or concerned with sanitation, public health, or the prevention of disease.
“The sanitarian approach to waste management focuses on reducing waste and promoting recycling.”