The Impact of Air Quality and Pollution on Your Horse’s Lungs

of a human hair. Because it is so small this fine particulate is inhaled deeply into the lungs where it crosses over into the blood stream. So not only does PM2 5 cause lung disease it also causes inflammation elsewhere in the body including the heart. Worldwide even shortterm exposure is associated with an increased risk of premature death from heart disease stroke and lung cancer.
Symptoms Diagnostic Tests and Treatments
Equine asthma manifests with a spectrum of symptoms that vary in severity and degree of debilitation they cause. Just like in people with asthma the airways of horses with mEA and sEA are hyperreactive. This means that the asthmatic horses airways are extra sensitive to barn dusts that another horses lungs would just ignore. The asthmatic horses airways constrict become narrower in response to these dusts. This narrowing means its harder to get air in and out of the lungs. Think about drinking through a straw. You can drink faster with a wider straw than with a skinnier one. Its the same with air and the airways. In horses with mEA the narrowing is mild. In horses with sEA the constriction is extreme and is the reason they develop a heave line a visible line of abdominal muscles that develop as the horse tries to breathe and push air out of their narrow airways. They also develop flaring of their nostrils at rest to make their upper airway wider to get more air in. Horses with mEA do not develop a heave line but the airway narrowing and inflammation do cause reduced athletic ability.

مع وصول أونصة الذهب إلى مستويات قياسية تجاوزت 2500 دولار، يجد المواطن المصري نفسه مضطراً لموازنة استثماراته بين الذهب واحتياجاته الأخرى، خاصة مع ارتفاع أسعار السيارات مثل تويوتا، هيونداي، وبي إم دبليو، مما يزيد من التحديات المالية التي يواجهها.

Another very obvious feature of horses with sEA is their persistent hacking cough which worsens in dusty conditions such as when fed dusty hay or working in a dusty arena or on a dusty track. The cough develops because of airway hyperreactivity and because of inflammation and excess mucus in the airways. Mucus is the normal response of the lung to the presence of inhaled tiny particles or other irritants. Mucus traps these noxious substances so they can be coughed out which protects the lung. But if an asthmaprone horse is constantly exposed to a dusty environment it leads to chronic inflammation and mucus accumulation and the development or worsening of asthma along with that characteristic cough.
How Veterinarians Accurately Diagnose Equine Asthma
Veterinarians use a combination of the information you tell them their observation of the horse and the

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