The phrase 'reduce the concentration' is correct and usable in written English.
It can be used to refer to decreasing the strength of a solution, or reducing the proportion of a particular element in a mixture. For example: "The chemist needs to reduce the concentration of nitric acid before it is safe to handle."
We must severely reduce the concentration limits in respect of UK media and cross-media ownership.
They have a vital interest in supporting measures that would help reduce the concentration of CO2 in the future".
Second, asylum seekers were "dispersed", to reduce the concentration of claimants living and working in London and south-east England.
By themselves, these changes will only modestly reduce the concentration in the industry today.
Progress is being made in using microbial degradation to reduce the concentration of PCBs in soil.
It also encourages public housing authorities to reduce the concentration of very poor tenants in buildings, a situation Mr. Lazio believes contributes to crime.
Overall, these experiments show that cannabinoids reduce the concentration of chloride ions inside the retinal ganglion cells, making them more excitable and more sensitive to light.
Third, the new strategy needs to reduce the concentration of economic power in the hands of multinational corporations and large retail chains.
HOW has government policy become "less redistributive since the late 1970s, doing less to reduce the concentration of income"?
Such filters typically can reduce the concentration of chemical agents by a factor of at least 100,000.
The moments when I felt most understood took place inside electronics shops as I browsed for air purifiers: whirring, filtered fans that claimed to reduce the concentration of PM2.5 and other pollutants to safe, single-digit levels.
