The phrase "great concern on" is grammatically correct and can be used in written English.
It is typically used to indicate a strong feeling of worry or anxiety about a particular issue or situation. Example: "There is great concern on the impact of climate change on our planet's future."
As for his daughter, he said, "She does ask a lot of questions," but "she hasn't expressed any great concern on her part.
"There should be great concern on this front as we enter the summer months," Dan Greenhaus, an analyst in the equity strategy group of Miller Tabak & Company, wrote in a research note.
Therefore, it is of great concern on developing effective alternatives for reducing N2O emissions and nitrogen losses during manure composting.
This, together with the local impacts of global climate change, causes a great concern on declining water conservation capacity of the Qilian Mountains and thus the eco-safety of the region.
As IEEE 802.11 wireless local area networks (WLANs) have been widely deployed in homes, offices, and public places [1], the high density of WLANs has posed a great concern on the problem of co-channel interferences.
The truth of the matter is that while most Americans voice great concern on the environmental and national security dangers of our reliance on oil, few actually act on their intuitions.
The bloodstream exposure to SiNPs through environmental and iatrogenic routes arouses great concerns on the biocompatibility and hemostability of SiNPs.
The increased environmental and iatrogenic exposure of SiNPs gained great concerns on the biocompatibility and hematotoxicity of SiNPs.
Tea expansion, a typical process of regional land use and cover change (LUCC), has raised great concerns on regional sustainability.
The combustion-synthesis has been well explored for preparing Ni-based nanocatalysts, however, the great concerns on safety and environment are raised [10].
Nevertheless, the recent failures in some existing urban rail systems and their station facilities in Hong Kong, Shenzhen, Guangzhou, Shanghai, and Beijing have caused great concerns on how reliable urban rail systems are, particularly due to heavy loadings on station facilities.
