Particulate Matter (PM) emissions from gasoline direct injection (GDI) engines. particularly Particle Number (PN) emissions. have been studied intensively in both academia and industry because of the adverse effects of ultrafine PM emissions on human health and other environmental concerns. GDI engines are known to emit a higher number of PN emissions (on an engine-out basis) than Por... https://megavitamines.shop/product-category/digestive-health-and-fiber/