effects of sulfur emissions
Because LEV emissions are most sensitive to sulfur fluctuations, it was thought that extrapolations would be both speculative and possibly very inaccurate, especially below 30 ppm. Thus, in MOBILE6, sulfur's effect on emissions will be limited to a range of 30 ppm on the low end and 600 ppm on the high end. For consistency within MOBILE6 and for ease of use, this valid range will apply to all vehicle. ------- technologies and emitter classifications.