The phrase "alarmed about how" is correct and usable in written English.
It can be used when expressing concern or anxiety regarding a particular situation or method.
Example: "She was alarmed about how quickly the situation was escalating."
Alternatives: "worried about how" or "concerned about how".
He said that business owners were alarmed about how Mr. Obama's proposals on health care and energy would affect their bottom line.
News Corp directors in the US are alarmed about how the hacking affair has been handled and view Brooks with suspicion.
Still, on Mr. Safir's watch several high-profile incidents left minority New Yorkers alarmed about how often they are viewed as suspects and concerned that the price of lower crime rates was police harassment of immigrants, blacks and Hispanics.
Such an arrangement is allowed under the system - which only bars MPs from renting from family members and those with whom they have a "business interest" - but some MPs are alarmed about how the arrangement will be perceived.
we spent months diving into Trump's Russia ties, growing increasingly alarmed about how compromised he might be & hypothesizing about the nature.
Like the proximity of the water, something is alarming about how the light penetrates the room.
It's nothing to be alarmed about -- it's just how life works.
And yet, because of our failure to cut global greenhouse gas emissions, as well as growing alarm about how quickly our climate is changing, the taboo is fading.
That said, Mr. Delisle has also expressed alarm about how professionals with reasonably high incomes — but a couple of hundred thousand dollars in graduate or professional school debt — could benefit disproportionately from forgiveness a few decades from now.
SAN FRANCISCO — The ranks of older and frail adults are growing rapidly in the developed world, raising alarms about how society is going to help them take care of themselves in their own homes.
Those two sides of Mr. Snyder's work are fused in his new book, "Black Earth: The Holocaust as History and Warning". Here, Mr. Snyder aims to offer a radically new explanation of the Nazi genocide grounded in Hitler's belief in a global ecological crisis caused by the Jews, while also sounding an alarm about how our own era of environmental disruption could lead to similar orgies of violence.
