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ATSDR , through risk communication and health intervention strategies , reduced the fish consumption rate of men of one Native American tribe from approximately 100 meals per year to 40 , and even lower during the second year ( approximately 25 meals per year ) . Levels of 20 mg per liter to 40 mg per liter in the water supply may prove harmful , especially in combination with high levels ( 1,000 ppm ) of nitrate-nitrogen from feed sources . One way of getting out of the tight corner is to increase the acreage of wheat cultivation and use good - quality seed to improve per acre yield from the present 22 maund per acre to 40 per acre already achieved by India . A coordinator proposed liberalizing that exemption to once a year , and increasing the maximum number of such attendees from 12 per meeting to 40 . Introduce struct anonmm per mm to track anonymous pages , all forks from one exec sharing the same bundle of linked anonmms .