The phrase "a serious harmful effect" is correct and usable in written English.
It can be used when discussing the negative consequences or impacts of an action, event, or substance.
Example: "The study revealed that the new pesticide could have a serious harmful effect on local wildlife."
Alternatives: "a significant detrimental impact" or "a severe adverse effect".
Elicitation of MnCl2 15 mg/L totally inhibited the occurrence of TQ as no spot of TQ was reported, thus reporting serious harmful effect of elevated concentrations of abiotic elicitors on TQ and THY production.
These restrictions apply both to ads targeting the public and professionals: no reminder ads are allowed for drugs with a 'black box' warning — the strongest US regulatory warning of serious harmful effects [5].
As well as impacting on an individual's health and well-being, problematic gambling may have serious harmful effects on the patient's family, financial security and career.
Oil vapor emission (OVE), having serious harmful effects on people and the environment, is always an important research topic for scientists, engineers or managers engaged in the fields of oil production and transportation, fire prevention, and environmental protection.
These AMDs can make serious harmful effects on groundwater quality, river flows and ecology of around their deposits (Sengupta 1993; Simate and Ndlovu 2014; Kefeni et al. 2017; Peiravi et al. 2017).
These serious harmful effects might attenuate the association between PM2.5 exposure in early pregnancy and preterm outcome.
Alcohol exposure not only affects the brain, leading to tolerance and dependence, but also can have serious harmful effects in other organs.
Smoking or being around secondhand smoke while pregnant can have serious harmful effects on the development of the fetus and can result in higher rates of miscarriage.It also raises the chance of premature labor, birth defects, and increased chances of Sudden Infant Death Syndrome.[6].
Altogether, available data on kratom suggest caution: this unregulated plant could exhibit a serious harmful potential, far beyond any "therapeutic" desired effect; in parallel, its anxiolytic, antidepressant, and analgesic properties need to be better explored by scientific research works, like, for example, in large blind randomized controlled clinical trials [ 28].
