ECs, can be categorized into three main spots, i.e., (1) unsaturated soil zone,
(2) groundwater, and (3) surface water. Plentiful aspects such as the type and class
of antibiotics, concentration, unwarranted dosage, acquaintance time, persistence
duration, removal pattern, reception hotspots, i.e., soil, water, or air. Moreover, the
occurrences of multi-antibiotics along with other biologically active pollutants as a
complex mixture pointedly affect their conceivable transmission into the aquatic
environment. Consequently, a diverse spectrum of biologically active constituents of
antibiotics has been found as micro-contaminants in soil and water matrices, in the
past two decades [17, 18].
In addition, besides their broader occurrence, the concentration is disturbingly
growing in an uncontrolled manner. The hefty usage of numerous antibiotics, regardless
of types and classes, is being practiced around the globe in a controlled or uncontrolled
fashion [1]. Main examples of heavily consumed antibiotics include active members
from the class penicillins (under the category of amoxicillin, ampicillin, and
dicloxacillin), active members from the class cephalosporins (under the category of
cephalexin, cefaclor, cefotaxime, and ceftazidime), active members from the class
macrolides (under the category of erythromycin, clarithromycin, and azithromycin),
active members from the class quinolones (under the category of ciprofloxacin,
levofloxacin, moxifloxacin, and ofloxacin), active members from the class sulfonamides
(under the category of sulfasalazine and trimethoprim), active members from the class
tetracyclines (under the category of minocycline, eravacycline, demeclocycline, and
doxycycline), active members from the class glycopeptides (under the category of
dalbavancin, oritavancin, telavancin, and vancomycin), active members from the class
aminoglycosides (under the category of gentamicin, tobramycin, and amikacin), and
active members from the class carbapenems (under the category of meropenem,
doripenem, ertapenem, imipenem, and cilastatin) (Fig. 3) [1].
In a modern medicine practice, several types of antibiotics as mentioned above
are among the most recurrently prescribed medications. According to one study, in
the USA alone, out of 61 million US women with reproductive age, i.e., 15–44 years,
around 99% used at least one contraceptive-based medicine, whereas other 60%
regularly use contraceptive-based medicine [19–21]. More specifically, out of all
those who used contraceptive-based medicine, approximately 72% practice
nonpermanent methods, i.e., primarily hormonal methods (i.e., the pill, patch,
implant, injectable, and vaginal ring) [21, 22]. Ultimately, upon excretion in the
domestic sewage of poorly metabolized active residues of the used contraceptives
find their way into the aquatic environment [17], even after passing through a partial
or inadequate treatment at of the swage waste at the WWTPs. Similarly, other
pharmaceuticals, such as ibuprofen, naproxen, acetaminophen, acetylsalicylic acid,
and carbamazepine, have been considered high-use and/or overuse antibiotics in
Canada [23]. Despite the excessive consumption of pharmaceuticals by humans,
several other pharmaceutically active constituents, such as antibacterials, antifungals, and parasiticides, are tremendously employed in the aquaculture, veterinary,
agriculture, and animal care settings. In the USA alone, about 92,500 and 196,400 kg
antibacterials/year are used for aquaculture-based applications. Moreover, around
8.5 and 11.2 million kg antibacterials are employed in the agricultural setting,
annually [24, 25]. Regardless of their usefulness in the respective sectors, the heavily
Sources of Pharmaceuticals in Water
37
(2) groundwater, and (3) surface water. Plentiful aspects such as the type and class
of antibiotics, concentration, unwarranted dosage, acquaintance time, persistence
duration, removal pattern, reception hotspots, i.e., soil, water, or air. Moreover, the
occurrences of multi-antibiotics along with other biologically active pollutants as a
complex mixture pointedly affect their conceivable transmission into the aquatic
environment. Consequently, a diverse spectrum of biologically active constituents of
antibiotics has been found as micro-contaminants in soil and water matrices, in the
past two decades [17, 18].
In addition, besides their broader occurrence, the concentration is disturbingly
growing in an uncontrolled manner. The hefty usage of numerous antibiotics, regardless
of types and classes, is being practiced around the globe in a controlled or uncontrolled
fashion [1]. Main examples of heavily consumed antibiotics include active members
from the class penicillins (under the category of amoxicillin, ampicillin, and
dicloxacillin), active members from the class cephalosporins (under the category of
cephalexin, cefaclor, cefotaxime, and ceftazidime), active members from the class
macrolides (under the category of erythromycin, clarithromycin, and azithromycin),
active members from the class quinolones (under the category of ciprofloxacin,
levofloxacin, moxifloxacin, and ofloxacin), active members from the class sulfonamides
(under the category of sulfasalazine and trimethoprim), active members from the class
tetracyclines (under the category of minocycline, eravacycline, demeclocycline, and
doxycycline), active members from the class glycopeptides (under the category of
dalbavancin, oritavancin, telavancin, and vancomycin), active members from the class
aminoglycosides (under the category of gentamicin, tobramycin, and amikacin), and
active members from the class carbapenems (under the category of meropenem,
doripenem, ertapenem, imipenem, and cilastatin) (Fig. 3) [1].
In a modern medicine practice, several types of antibiotics as mentioned above
are among the most recurrently prescribed medications. According to one study, in
the USA alone, out of 61 million US women with reproductive age, i.e., 15–44 years,
around 99% used at least one contraceptive-based medicine, whereas other 60%
regularly use contraceptive-based medicine [19–21]. More specifically, out of all
those who used contraceptive-based medicine, approximately 72% practice
nonpermanent methods, i.e., primarily hormonal methods (i.e., the pill, patch,
implant, injectable, and vaginal ring) [21, 22]. Ultimately, upon excretion in the
domestic sewage of poorly metabolized active residues of the used contraceptives
find their way into the aquatic environment [17], even after passing through a partial
or inadequate treatment at of the swage waste at the WWTPs. Similarly, other
pharmaceuticals, such as ibuprofen, naproxen, acetaminophen, acetylsalicylic acid,
and carbamazepine, have been considered high-use and/or overuse antibiotics in
Canada [23]. Despite the excessive consumption of pharmaceuticals by humans,
several other pharmaceutically active constituents, such as antibacterials, antifungals, and parasiticides, are tremendously employed in the aquaculture, veterinary,
agriculture, and animal care settings. In the USA alone, about 92,500 and 196,400 kg
antibacterials/year are used for aquaculture-based applications. Moreover, around
8.5 and 11.2 million kg antibacterials are employed in the agricultural setting,
annually [24, 25]. Regardless of their usefulness in the respective sectors, the heavily
Sources of Pharmaceuticals in Water
37