Thus, the estimates include health benefits from reducing fine particles in areas with varied concentrations of particulate matter, including both regions that are in attainment with fine particle standard and those that do not meet the standard.
Fine particles often contain heavy metals and can cause spontaneous death.
mnli hypothesis: Fine particles often contain heavy metals and can cause spontaneous death. premise: Thus, the estimates include health benefits from reducing fine particles in areas with varied concentrations of particulate matter, including both regions that are in attainment with fine particle standard and those that do not meet the standard.