Chaney L W
Science. 1978 Mar 17;199(4334):1203-4. doi: 10.1126/science.75569.
During a procedure to monitor carbon monoxide (CO) concentrations inside a traveling car, it was discovered that CO emissions from individual passing vehicles produced accurately measurable increases in the CO concentration. The CO produced by individual vehicles varied by three orders of magnitude; this finding demonstrates that a relatively small number of cars can be responsible for a high percentage of total vehicle CO Emissions.
在一项监测行驶中汽车内一氧化碳（CO）浓度的过程中，发现单个过往车辆排放的一氧化碳会使车内一氧化碳浓度产生可精确测量的增加。各车辆产生的一氧化碳量相差三个数量级；这一发现表明，相对少数的汽车可能导致车辆一氧化碳排放总量的很大一部分。
