Trained volunteers are collecting baseline data on water quality, and testing for selected suspected contaminants of the coral reef.
Volunteers are testing for contamination around a coral reef which doesn't affect the coral reef
( z1 test :ARG0 ( z2 person :ARG0-of ( z3 volunteer ) ) :ARG2 ( z4 contaminate :ARG1 ( z5 around :op ( z6 reef :mod ( z7 coral ) ) ) :ARG0-of ( z8 affect :polarity - :ARG1 z6 ) ) )