<prompt> Translate the following text to SwahiliHow well they measure what they are trying to measure, but also on 1 the extent to which the risks being valued are similar, and 2 the extent to which the subjects in the studies are similar to the population affected by changes in pollution concentrations.  <response>: Kwa mfano, kwa nini watu wanajaribu kupima hatari, na kwa nini watu wanajaribu kupima hatari, na kwa nini watu wanaopima hatari wanafanana na watu wanaopatikana katika mazingira yenye uchafuzi. 