The emission control system in automobiles is a means employed to limit the discharge of noxious gases from the internal-combustion engine and other components. There are three main sources of these gases the engine exhaust, the crankcase, and the fuel tank and carburetor. 7382708685 Vasthi Instruments are a global leader in the manufacturing of Water Quality Monitoring analyzers and have been supplying instruments to customers worldwide, Our multidisciplinary team of scientists, physicians, engineers, and regulatory consultants with decades of global experience