arab
analysis
analyzing
arabian
arabic
bottle
chemical
chemist
chemistry
clean
contaminated
contamination
desalinated
desalination
drink
ecology
environment
examining
experiment
expertise
filtered
fresh
glass
lab
laboratory
liquid
man
medical
microbes
microbiology
muslim
pollutant
pollution
quality
research
researcher
saline
saltwater
sample
saudi
science
scientific
scientist
student
test
testing
toxic
tube
virus
water