The phrase "alarming about how" is correct and usable in written English.
It can be used when discussing something that causes concern or worry regarding a particular situation or behavior.
Example: "The report was alarming about how quickly the situation was deteriorating."
Alternatives: "concerning regarding how" or "worrisome 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.
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.
It's nothing to be alarmed about -- it's just how life works.
However, it's nothing to be alarmed about!
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.
At this current moment when China faces greater international tensions, a pushback to their rising influence in Asia, and territorial disputes along their border with India, the last thing that Beijing needs is accusations from an opportunistic Indian politician sounding the alarm about how Beijing-based Chinese companies are spreading misinformation among the impressionable Indian electorate….
Six years ago I published "Oracles of Science: Celebrity Scientists versus God and Religion" (with Oxford University Press, not a partisan religious press) raising alarms about how the public face of science was far more hostile to religion than the scientific community as a whole.
In the middle of his analogy to me about his own personal crash and the country's need to heal itself, Beck looked at his publicist with a flash of alarm about how I might construe what he was saying.
Last week brought another alarming revelation about how few workers are putting money aside for later life.
