<prompt> Translate the following text to EnglishKwa mfano, kurekebisha kwa tofauti za umri kati ya masomo ya kiuchumi na wale walioathiriwa na uchafuzi wa hewa inaweza kuashiria haja ya kurekebisha 6 milioni VSL chini, lakini asili ya hatari ya uchafuzi wa hewa na kiwango cha chini cha hatari ya kazi ya mikono katika masomo ya soko la kazi inaweza kuashiria haja ya marekebisho ya juu.  <response>: For example, adjusting for age differences between subjects in the economic studies and those affected by air pollution may imply the need to adjust the 6 million VSL downward, but the involuntary nature of air pollution-related risks and the lower level of risk-aversion of the manual laborers in the labor market studies may imply the need for upward adjustments. 