The phrase "are huge concerns" is correct and usable in written English.
It can be used when discussing significant issues or problems that require attention or consideration.
Example: "The rising levels of pollution and climate change are huge concerns for our planet's future."
Alternatives: "are major issues" or "are significant worries".
Health insurance availability and cost are huge concerns for small businesses.
There are huge concerns about GPs generally and how accountable the spend is.
Most important are huge concerns about digital piracy, although Apple and Google do seem to have eased those with digital-rights-management technology, which guards against unauthorised copying.
There are, in the minds of many in the military and intelligence establishment, battles yet to come; Yemen and Pakistan are huge concerns, as are other places.
Of course, this is far from perfect – China has a problem of depleting water resources, the safety of food can be improved, rural incomes need to rise, air quality and climate change are huge concerns and the big issue of natural resource sustainability but China's investment in infrastructure, technology and education and increased reliance on markets have already paid off.
The large number of people that requested a public inquiry into the expansion of Lydd Airport shows that there are huge concerns about the impact these proposals would have in terms of the increase in pollution for local residents and the threat to important wildlife".
"There were huge concerns when the law first came in," he says.
There's huge concern about this.
There's huge concern among those students that Prevent is feeding into that.
The athlete, who won 11 Paralympic gold medals, said: "There is huge concern about the effect of DLA reform.
We must make people realise it is invalid but there is huge concern the oil company will move quickly to clear the land.
