Open Access
Review
Table 1
Concentrations and taxonomy of airborne bacteria, fungi and pollen in cities distributed in different continentsa)
| Continent | City | Concentration | Taxonomy composition (phylum) | |
| Bacteria | Asia [9] | Beijing | 102–105copies/m3 | Proteobacteria, Firmicutes, Actinobacteria, Cyanobacteria, Bacteroidetes |
| Asia [16] | Beijing | 105–106cells/m3 | Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes, Cyanobacteria | |
| Asia [17] | Ji’nan | 6.8×105±1.3×104cells/m3 | Firmicutes, Proteobacteria, Bacteroidetes | |
| Asia [18] | Harbin | 6.0×101–3.4×105copies/m3 | Proteobacteria, Firmicutes, Bacteroidetes, Planctomycetes, Epsilonbacteraeota | |
| Asia [9] | PRD | 103–104copies/m3 | Proteobacteria, Firmicutes, Actinobacteria, Cyanobacteria, Bacteroidetes | |
| Asia [19] | Weihai | 104–105cells/m3 | Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes, Deinococcus-Thermus | |
| Asia [20] | Xi’an | 104–105cells/m3 | Proteobacteria, Firmicutes, Deinococcus-Thermus, Bacteroidetes | |
| Asia [9] | YRD | 102–104copies/m3 | Proteobacteria, Firmicutes, Actinobacteria, Cyanobacteria, Bacteroidetes | |
| Asia [21] | Seoul | 103–108copies/m3 | Firmicutes, Gammaproteobacteria, Deltaproteobacteria, Betaproteobacteria, Bacteroidetes | |
| Europe [10] | Puy de Dôme | 2.2×105–6.2×106copies/m3 | Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteriota | |
| Europe [22] | Pic-du-Midi | 1.5×105±1.3×105copies/m3 | Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes | |
| North America [22] | Colorado | 1.6×106±1.2×106copies/m3 | Firmicutes, Proteobacteria, Bacteroidota, Actinobacteriota | |
| North America [23] | Nuuk | 101–103cells/m3 | Alphaproteobacteria, Rubrobacteridae, Acidobacteria, Firmicutes, Actinobacteriota | |
| South America [22] | Chacaltaya | 1.6×105±1.4×105copies/m3 | Bacteroidetes, Firmicutes, Actinobacteriota, Chloroflexi, Proteobacteria | |
| Africa [3] | Bamako | 5.9×104–5.3×105copies/m3 | Proteobacteria, Firmicutes, Actinobacteria | |
| Antarctica [24] | Antarctic coast | –– | Proteobacteria, Bacteroidetes, Actinobacteria, Firmicutes | |
| Fungi | Asia [13] | Beijing | 103–104copies/m3 | Ascomycota, Basidiomycota |
| Asia [25] | Ji’nan | 102–104copies/m3 | Ascomycota, Basidiomycota, Zygomycota | |
| Asia [18] | Harbin | 1.6×102–7.9×103copies/m3 | Ascomycota, Basidiomycota, Nematoda, Vertebrata | |
| Europe [10] | Puy de Dôme | 7.4×102–2.8×104copies/m3 | Ascomycota, Basidiomycota | |
| North America [22] | Colorado | 8.8×104±6.5×104copies/m3 | Basidiomycota, Ascomycota | |
| South America [22] | Chacaltaya | 1.1×103±1.0× 103copies/m3 | Ascomycota, Basidiomycota | |
| Africa [22] | Cape Town | 1.7×103±1.2×103copies/m3 | Ascomycota, Basidiomycota | |
| Pollen | Asia [26] | Tokyo | 326±324–813±529 pollen/m3 | Poaceae, Plantaginaceae, Araceae, mosses: Hylocomiaceae, Funariaceae |
| Europe [27] | Cordoba | Peak: (1287±898 pollen/m3) | Quercus pollen | |
| Europe [28] | Munich | 0–1800 pollen/m3(101–103) | Betula, Carpinus, Urticaceae, Poacea,Tilia | |
| Europe [29] | Vinnytsia | 8×103–3 ×104pollen grains/m3 | Betula, Alnus, Fraxinus, Juglans, Acer | |
| North America [30] | Iowa | 0–1100 pollen/m3 | –– | |
| Africa [31] | Mornag | 0–1400, 0–1900, 0–270, 0–80 pollen/m3 | Olea europaea , Cupressus, Urticaceae, Poaceae | |
| Oceania [32] | Queensland | 789–3945 pollen/m3 | Poaceae, Fabaceae, Asteraceae, Myrtaceae, Cupressaceae |
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