Environmental Engineering Reference
In-Depth Information
TABLE 12.1
Particle Sizes and Health Effects of Airborne Biological Agents
Susceptible 
Population b
Biological Agent
Type Size ( μ m)
Location
Reservoir a
Health Effect
Infectious agents
Viruses
Adenovirus
Droplets of respiratory
discharges: 0.07-0.09
Oropharynx
H
Acute febrile respiratory disease
Acute viral rhinitis (common cold)
Oropharyngitis (sore throat)
H, H1, H3
Coronavirus
Droplets of nasal and throat
secretions: 0.10-0.15
Nasopharynx
H
Acute febrile respiratory disease
Acute viral rhinitis (common cold)
H
Enteroviruses
Droplets of nasopharyngeal
secretions: 0.03
Oropharynx
H
Oropharyngitis (sore throat)
H
Hanta virus
Droplet nuclei of rodent excreta:
0.08-0.12
Lung
A1
Hantavirus pulmonary syndrome
H, H4, H5
Inluenza viruses type
A, B, C
Droplet nuclei of respiratory
secretions: 0.08-0.12
Nasopharynx
H, A2, A3
Inluenza (A: pandemic; A,B: epidemic)
Pneumonia
H, H6,
H7, H8
Larynx
Bronchi
Measles virus
Droplet nuclei of respiratory
secretions: 0.12-0.25
Bronchi
H
Measles (rubeola)
H, H7,
H6, H9
Mumps virus
Droplets of saliva: 0.15-0.20
Salivary glands
H
Mumps (infectious parotitis)
H
Parainluenza virus
Droplets of respiratory secretions:
0.15-0.20
Larynx-trachea
Lung
H
Croup: obstruction of the upper airway in
young children; hoarseness in adults
Acute febrile respiratory disease
Pneumonia
H1, H2
Respiratory syncytial virus
(RSV)
Droplets of respiratory secretions:
0.10-0.35
Bronchioles
Lung
H
Acute febrile respiratory disease
Pneumonia
H1, H2
Rhinoviruses
Droplets, droplet nuclei of
sputum, saliva, or nasal or throat
secretions: 0.02-0.27
Nasopharynx
H
Acute febrile respiratory disease
Acute viral rhinitis (common cold)
A
Rubella virus
Droplets of nasopharyngeal
secretions: 0.07
Pharynx
H
Rubella (German measles)
H, H7, H9
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