'alleviate concerns about' is correct and can be used in written English.
You can use it when you want to talk about reducing worries and fears. For example: By talking to everyone involved, we were able to alleviate concerns about the project's success.
Leasing the battery should also alleviate concerns about its reliability.
That may alleviate concerns about conditions getting much worse".
Nicholas Bequelin, a researcher for Human Rights Watch, said the announcement did not alleviate concerns about Mr. Gao's treatment or whereabouts.
The commercial side does nothing to alleviate concerns about caging birds: lots of small birds temporarily housed in very small, yellow, plastic cages are not a pretty sight.
As Wagner mulled whether to waive his no-trade clause with the Mets, Boston Manager Terry Francona spoke with him to alleviate concerns about his workload.
Encourage them to search internally when they have roles to fill, and communicate your intentions companywide to alleviate concerns about internal poaching.
Making this process known would help alleviate concern about the mistakes within or revisions made to published works and would go a long way towards restoring confidence in the scientific endeavor.
John K. Hurley, a top partner at Bowman Capital, a $5.5 billion technology hedge fund, said the "half-full view" was that the Fed's move alleviated concerns about an economic slowdown.
That someone's race was overtly invoked as a reason to kill him during trial should be indicator enough that the death penalty has meaning for the public beyond alleviating concerns about violent crime.
The capital will increase Deutsche's core Tier-1 ratio, a measure of a bank's strength, from 9.5% to 11.8%, alleviating concerns about its balance-sheet, at least for a while.
