anchor: Exhibit 4 provides a list of the health effects for which we estimate quantified benefits as part of our analysis plus a list of the health effects for which we are unable to quantify benefits at this time.
positive: Exhibit 4 gives lists of health effects for quantified benefits as well as those would could not quantify.
negative: Exhibit 4 only provides a list of the health effects for which we were able to quantify benefits.