"with heightened concern" is correct and usable in written English.
You can use it to describe a feeling that is more intense or urgent than before. For example, "The public is viewing the rising crime rate in the city with heightened concern."
Both areas have gained momentum in the past decade with heightened concerns about the fate of the planet.
The news from JPMorgan comes at a difficult juncture for the stock market as investors wrestle with heightened concerns about Europe's debt crisis and signs are emerging that the economic recovery in the United States may be starting to slow.
"The shift in risk attitudes has interacted with heightened concerns about credit risks and uncertainty about how to evaluate those risks to create significant market stress," he said in Jackson Hole.
But with heightened concerns over global warming, clean air is increasingly associated with seaports.
Barack Obama, Bill Clinton, and Michael Bloomberg might each agree that with heightened concerns about drought and warnings of worldwide crop shortages due to rising temperatures, we need to put science first when dealing with climate change.
With the heightened concern of privacy on the social network, a dashboard that empowers users to have control over their personal information accessed by Facebook apps will no doubt be a popular feature.
And with that explosion has come heightened concern among proponents about how to spare social and emotional learning from the fate of many ideas in education: the fizzle.
Neuroscientists are on the cusp of proving that prolonged exposure to social networking sites dictates the way a young brain will develop, with evidence to suggest it leads to a heightened concern for how one compares to others.
Frequent unscheduled contact with providers by telephone or visits may signal this heightened concern.
His remarks underlined his intention to use heightened concern over security to win closer cooperation with the United States in the run-up to the Sochi Winter Olympics next February.
