<prompt> Translate the following text to SwahiliLinear concentration-response relationships between PM and all health effects are assumed, indicating that reductions in PM have the same impact on health outcomes regardless of the absolute level of PM in a given location.  <response>: Uwiano wa mtiririko wa mtiririko wa PM na athari zote za afya ni kudhani, kuonyesha kwamba kupunguzwa kwa PM kuna athari sawa kwa matokeo ya afya bila kujali kiwango cha jumla cha PM katika eneo fulani. 