Trail Smelter arose from a situation wherein sulfur dioxide fumes from a smelter in Trail, British Columbia, were damaging farmland and crops in the state of Washington.

• 特雷尔冶炼厂仲裁案是英国哥伦比亚公司的熔炉排放的二氧化硫气体，使华盛顿的农田和庄稼遭受损失。