I can't hear you very well <a href=" http://www.villapastorie.nl/stmap_b1f12.html#lash ">lethal dose of ibuprofen 800</a> Howarth says he's skeptical they are representative. He says gas companies "do better when they know they are being carefully watched," adding they knew which sites were being measured in the new study. He says they very often don't make the efforts needed to reduce emissions.