'prolonged impact' is a correct and usable phrase in written English.
You can use it when you want to describe a long-lasting effect of something. For example, "The pandemic has had a prolonged impact on the global economy."
Only the build-up of a stratovolcano body and a large flood basalt caused prolonged impact on fluvial landscape development.
This will have prolonged impact in the downstream due to increased sediment transport sourced from such erosional sites.
In women, eating disorders affect luteinising hormone and follicle-stimulating hormone levels and can have prolonged impact on reproductive functions and fertility.
His contributions make real and prolonged impact these days, his threat omnipresent rather than flaring then fizzling out.
Potential immediate and prolonged impact of timber harvests on stream-associated amphibians (SAA; torrent (Rhyacotriton spp).
Its prolonged impact is hard to quantify, given that there is no control group, and cannot be compared to that of a singular disease outbreak.
Nearly all SAA/forest management research has been of short duration, and many studies have occurred on landscapes that were harvested previously, limiting effective comparisons between current and historical distributions of amphibians and immediate vs. prolonged impacts of forest harvest.
Five hundred metres away, past streets still dotted with the odd soldier – Paris's state of emergency, which was this week extended until late May, has prolonged the impact of the attacks on businesses – are two of the cafes that were targeted by gunmen last November.
They concluded that there were no significant virologic or immunologic benefit to STIs and that there is evidence that STIs have a prolonged negative impact on CD4 response and other disease events.
But unless an economic downturn is prolonged, the impacts of tax cuts are very hard to time.
Inadequate support and a lack of a clear investigation seemed to deepen and prolong the impact.
