industrial hygiene testing; namely, analysis of workplace samples for the presence of industrial elements and chemicals and providing analysis reports therefor, and environmental testing; namely, analysis of drinking water, waste water, environmental air, and fuel for the presence of toxic and other polluting substances, and providing analysis reports therefor

'air':33 'analysi':5,19,26,47 'chemic':16 'drink':28 'element':14 'environment':23,32 'fuel':35 'hygien':2 'industri':1,13 'name':4,25 'pollut':43 'presenc':11,38 'provid':18,46 'report':20,48 'sampl':8 'substanc':44 'test':3,24 'therefor':21,49 'toxic':40 'wast':30 'water':29,31 'workplac':7

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