Methylmercury , found in fish and shellfish , can harm a child 's thinking , language , fine motor skills , memory , attention , and visual spatial skills when exposed in the womb . The new limits are projected to prevent 130,000 cases of asthma , 6,300 cases of bronchitis . Methylmercury , found in fish and shellfish , can harm a child 's thinking , language . Comment:
The new limits are projected to prevent 130,000 cases of asthma , 6,300 cases of bronchitis . Methylmercury , found in fish and shellfish , can harm a child 's thinking , language . Comment: