The partial assessment approach is an extreme implementation of the “at least” approach in so far, as it does not include a major aspect of mortality and morbidity risk related costs, namely the intangible costs. In addition, for some health outcomes (chronic bronchitis, asthma attacks) only the medical treatment costs are included, as for the production loss related to these health outcomes, no data is presently available. In absence of empirical data, for the very great number of restricted activity days no costs of production loss and medical treatment could be established at all.