The phrase "rising concern over" is correct and usable in written English.
It can be used when discussing increasing levels of worry or anxiety regarding a particular issue or topic.
Example: "There is a rising concern over the impact of climate change on global food security."
Alternatives: "growing apprehension about" or "increasing worry regarding".
There is rising concern over the use of the tranquilliser Xanax by British teenagers.
The decision was seen by many as an acknowledgment of the rising concern over the safety of biotech crops.
The importance of building capacity in biotechnology is reinforced by the rising concern over the impact of climate on agriculture.
Rising concern over anti-Semitism, as much as anything, has quashed debate among American Jews over Israeli politics and policies.
There is a rising concern over the toxicity of nanomaterials which emphasizes the need for reforms in application of nanomaterials in water treatment.
Rising concern over the poor level of blood-pressure (BP) control among hypertensive patients has prompted searches for novel ways of managing hypertension.
There is rising concern over the state of local government finances, and governments may be forced to make better disclosures if they simply want to issue new bonds.
His triumph, like that of the anti-immigrant Northern League in last month's general election, reflects rising concern over crime, which is often blamed on non-Italians.
"In the near term, the main risk is an escalation of financial stress and contagion, prompted by rising concern over sovereign risk," the I.M.F. said.
In a sign of rising concern over flagging exports, China allowed its yuan currency to depreciate further and currencies in neighbouring markets also weakened.
Seeking to quell rising concern over the disappearances, city authorities insisted they attached "great importance to the cases" of the missing booksellers.
