"centre of concern" is a correct and commonly used phrase in written English.
It is typically used to refer to the main or most important issue or topic of discussion. Example: The recent increase in crime rates in our community has become the centre of concern for many residents.
As the Press Association reports, the crisis command centre under the Ministry of Defence is at the centre of concerns over the planned use of the department's car park for work on Richmond House.
The rooftop US spying site lies less than 150 metres from a cylinder on the British embassy which is at the centre of concerns that Britain may also have been eavesdropping on communications in the German capital.
At the centre of concerns over the case against Ahed are fears that she has been singled out for "embarrassing the occupation", as well as the use of the military courts system to deal with a minor.
An east London primary school is at the centre of concerns over Islamic extremism, it has been revealed.
The exam board at the centre of concerns about the low results of GCSE English language papers sat in January says it has ordered a re-grade of some papers.
Already in 1992 the Rio Declaration stated that "Human beings are at the centre of concerns for sustainable development.
In the late 1990s an island in the Aral Sea, Vozrozhdenya, became the centre of environmental concern.
We knew that it would place the terrible, widespread issue of family violence front and centre of community concern and on the government's agenda.
The trust has a job that has already begun to put BBC programme-making back where it should be: at the centre of public concern.
In the 1970s, at the height of the feminist movement, American critic Lucy Lippard advocated women's art, helping to bring this movement from the margin of the art world to the centre of social concern.
