The phrase "based on a concern that" is correct and usable in written English.
You can use it when you want to explain why you or another person has taken a particular action or attitude. For example, "He asked me not to go out, based on a concern that I might be in danger."
However, I would like to express a word of caution based on a concern that the problems that led to the economic meltdown have been only partly addressed.
Opposition to retroactive tax increases is often based on a concern that individuals or companies may have acted differently had they known a change in tax policy was coming.
Court said his organization's opposition was based on a concern that the legislation could make it easier for cities to target homeowners for things like zoning violations.
This is based on a concern that either a girl will choose the "wrong" person to marry, or that she will fail to marry altogether and "stay at home" and become "evde kalmış," as the Turkish saying goes. .
He was also a vigorous supporter of the White Australia policy, advocating the cessation of Kanaka immigration and the gradual deportation of those who had already arrived in Queensland; his opposition was based on a concern that "inferior labour would... tend to degrade labour throughout the Commonwealth", as well as concerns about racial purity.
The contention that innovative strategies will be required is based on a concern that climate change, which could jeopardize critical infrastructure and destabilize various systems that maintain public health, may represent a categorically distinct public health stressor.
While the work on older citizens was based largely on a concern that increased bus use by young people might reduce the willingness of Freedom Pass holders to travel, widening age-related inequalities, hearing their bus narratives inevitably raised other wide-ranging implications of bus-mediated mobility for wellbeing.
A large number of thoughtful, patriotic Americans oppose an attack on Iraq based on a genuine concern that the cost to our country will be greater if we do than if we don't.
In his letter, Mr. Farmer said that while his staff had determined that no conflict existed, he was removing himself from the investigation "based on an overriding concern that, in this climate of public skepticism, its results be above reproach".
Willis based his appeal on a concern that Alex Newton, the British team's performance manager, was - in the words of the independent report - "predisposed against Willis because of a complaint he had previously made about a selection decision".
Polk's decision was based on his concern that a protracted negotiation by US commissioners would expose annexation efforts to foreign intrigue and interference.
