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. • • <br /> History of MW-1 <br /> 100,000 <br /> 10,000 - <br /> 1,000 <br /> --♦—TPHg <br /> 100 w ■ - - f MTBE <br /> o ; <br /> U ` <br /> 10 - <br /> 1 <br /> 0 <br /> CP CP o°' o° <br /> Ps` 'J\ PQM 'J OGS '��, PQt ,�� OGS ,�� PQM, ,� OGS ,�� P��, ,��, OGS ,�� Pic '� OGS '�� Pyr ,�OGS '�� PQM• <br /> Time <br />