<prompt> Translate the following text to SwahiliStrategies and technologies for the control of SO2, NOx and mercury emissions exist now, and improved methods are expected to become available over the next several years.  <response>: Mifumo ya kudhibiti SO2, NOx na mercury inapatikana sasa na inatarajiwa kuwa na njia bora zaidi katika miaka kadhaa ijayo. 