The phrase "a serious increase of" is correct and usable in written English.
It can be used when discussing a significant rise in quantity, level, or intensity of something.
Example: "There has been a serious increase of pollution levels in the city over the past decade."
Alternatives: "a significant rise in" or "a substantial increase in".
"There's a serious increase of eating disorders among men," Ms. Bordo said, "of steroid abuse, of exercise compulsion".
Personally, I plead guilty to having a backlog of pleas and stories from Haiti, including reports of a serious increase of rapes in the camps.
Devumi, FastFollowerz, TwitterBoost, BuyRealMarketing, and TwitterWind are all reliable services for delivering followers, all of which cost between $12 and $20, offer some form of money-back guarantee, and increase your followers by a serious increase of 300,000-500,000.[4].
This is probably due to the fact that the MBL model requires a serious increase in the number of parameters, as compared to two supplementary parameters of the covarion approach.
Daily traffic will be lighter, Bay Bridge traffic heavier and there is a serious increase in the amount of fun to be had all over town.
The effects of a serious increase in violence at community wide levels do not seem to extinguish rapidly, as suggested by continued high demand for services and increasing time to treatment with long recall to triggering events.
4 The use of ocular steroids is associated with a serious increased risk of ocular hypertension, cataracts and/or glaucoma.
With regard to OAP-related polarity of astrocytes and the quality of the BBB, Zhou et al. (2008) found an altered BBB integrity with serious increase of permeability and downregulation of the astrocyte-specific intermediate filament GFAP in the AQP4-knockout mouse.
With every year that passes without sufficient measures being taken, the risk and scale of a serious accident increase.
Electromagnetic interference (EMI) is a serious and increasing form of environmental pollution.
Heavy metal contamination is a serious problem of increasing significance for environmental reasons.
