Brad Wallace December 12, 2014 Environment Canada clamps down on Mercury Brad Wallace December 12, 2014 Really hard to argue with the need for regulations. But I really miss playing with liquid mercury - it's really cool stuff! The new regulations are the first of their kind in Canada. They will set limits on the maximum quantity of mercury allowed in some ‘essential’ products like compact fluorescent light bulbs, fluorescent tubes and neon signs.Certain key products that are determined to have ‘no technically or economically viable alternatives’, such as some medical and research applications and dental amalgam, will be exempted from the regulations. However, for these products the regulations specify a maximum allowable quantity of mercury.