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Keywords from Image Description:
TECHNICIAN ZELJKO KWOKAL AT THE PULSE POLAGRAPH MEASURES METAL IMPURITIES IN INDUSTRIAL WASTE WATER NARA . Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Okamoto Yoichi Yoichi Robert Photographer File TECHNICIANZELJKOKWOKALATTHEPULSEPOLAGRAPHMEASURESMETALIMPURITIESININDUSTRIALWASTEWATERNARA