The phrase "alter the quality of" is correct and usable in written English.
It can be used when discussing changes or modifications that affect the standard or characteristics of something.
Example: "The new regulations are expected to alter the quality of the air we breathe, leading to improved public health."
Alternatives: "change the standard of" or "modify the characteristics of".
If so, why might the height from which the ball was dropped alter the quality of the spray?
Still, many cities face decisions now that may permanently alter the quality of human lives and the environment.
What matters, what appals, in Houston is the attempt being made there to alter the quality of baseball's time.
It is well-recognized, that dietary manipulation can alter the quality of lamb meat.
Future afforestation policy needs to further activities that alter the quality of the existing forest resource.
Damaging your body and mind with injections will alter the quality of your entire life sooner or later.
The computational efficiency of the SNBCK can be considerably improved without altering the quality of the solutions by using the gas mixing scheme of Modest and Riazzi.
The neonicotinoid treatment altered the quality of R. padi as prey for 2nd instar C. maculata, but this depended on the aphid infestation level on the plants.
Ethanol treatment altered the quality of mineralization at 10 mM dose whereas completely inhibited mineralization at 100 mM dose, despite the presence of serum.
Although genetic defects of different gene loci can lead to similar degrees of attenuation, effects on the course of infection may vary, thereby altering the quality of the elicited immune response.
In addition, the broad resistance achieved here with plants expressing the yeast Tpo1p transporter could allow farming in soils contaminated with heavy metals without altering the quality of the edible parts of crops, as the expression of this transporter did not lead to over-accumulation of toxic cations.
