Johnson Matthey's autocatalysts and catalysed components contribute to improved air quality and public health by removing pollutants from vehicle exhausts. These environmental benefits have been shown to outweigh the environmental costs of producing them, in terms of energy and resource use. Details can be found in this case study.
As well as making autocatalysts, Johnson Matthey provides a
recycling service in which the platinum group metal content from used catalytic converters can be recovered, reducing the demand for mined metal in fresh catalysts, and associated resource consumption.