The phrase "a general drop in" is correct and usable in written English.
It can be used to describe a decrease or decline in a particular area or aspect, often in a broad or overall sense.
Example: "There has been a general drop in consumer confidence over the past few months."
Alternatives: "a widespread decline in" or "a significant decrease in".
Consequently, slow transcribing "incomplete" transcription complex (ER2D) become a prevailing type of complexes formed at ERE, that causes a general drop in transcription at high expression level of ER, and may explain generally low expression level of ER-dependent genes in LCC2 cells.
"There is a general drop in the number of foreign tourists, especially Americans".
The decline in youth interest mirrors a general drop in the popularity of the sport.
Although the machair is still loud with the sounds of breeding waders, it is no longer as noisy as it once was, because even here, a vital breeding area, numbers reflect a general drop in population.
By shorting a basket of stocks to protect against a general drop in equity prices, and then borrowing money to buy particular shares they deemed undervalued, these funds "hedged" their positions so as to prosper whichever way the market moved.
The fall in the numbers of subsidiaries can partly be explained by a general drop in the use of tax havens, but Mr Gramlich also attributes the shift to companies reclassifying their subsidiaries as "not significant", a category that does not need to be disclosed.
Mr. Pinault said that the effects of the credit crunch had compounded a general drop-off in consumer confidence, making it harder to predict demand.
Such a fluorescence shift from red to green suggests a general drop of mitochondrial membrane potential in cumulus cells exposed to maternal diabetes.
These include general drop-in sessions and classes for children and their families as well as specialist help for more vulnerable families, for example counselling or learning support.
In Vermont, that has helped the Lake Champlain region weather the general drop in the tourism industry, said Tim Shea, a spokesman for the local Chamber of Commerce.
It remains to be seen, however, how the general drop in commodities prices over the last few months will affect this optimism; also the fact that Chinese growth is slowing down.
