AQI (indeks kakovosti zraka) je lestvica od 0 do 500, ki povzema, kako čist ali onesnažen je zrak. Nižje je bolje. Lestvica na tem spletnem mestu sledi konvenciji ameriške agencije za varstvo okolja (US EPA): 0-50 Dobro, 51-100 Zmerno, 101-150 Nezdravo za občutljive skupine, 151-200 Nezdravo, 201-300 Zelo nezdravo, 301-500 Nevarno.

Kateri onesnaževalci se merijo?

PM2.5 (drobni delci), PM10 (grobi delci), ozon (O3), dušikov dioksid (NO2), žveplov dioksid (SO2) in ogljikov monoksid (CO). Skupni AQI določa onesnaževalo z najslabšo oceno.

Kako pogosto se AQI osveži?

Večina meritev se osveži vsakih 15–60 minut iz merilnih postaj, ki jih upravljajo nacionalne agencije za okolje. Nekatere meritve iz satelitov se posodobijo vsakih nekaj ur.

Kaj je PM2.5 in zakaj je pomemben?

PM2,5 se nanaša na delce v zraku, velike 2,5 mikrometra ali manj — dovolj majhne, da prek pljuč vstopijo v krvni obtok. Dolgotrajna izpostavljenost je povezana z boleznimi dihal, srčnimi boleznimi in možgansko kapjo. WHO priporoča letno povprečje pod 5 μg/m³.

Svetovni monitor indeksa kakovosti zraka (AQI)

Globalni sistem za spremljanje kakovosti zraka sledi drobnim delcem (PM2,5), žveplovemu dioksidu in ravni dušika v realnem času. Atmosferski pogoji se močno razlikujejo glede na regijo, odvisno od industrijske dejavnosti, gostote prometa in vremenskih vzorcev. Bodite obveščeni o trenutnih koncentracijah onesnaževal in zdravstvenih priporočilih za vaše območje.

Priljubljena mesta

Svetovni monitor

AQI v

Prebrskajte kakovost zraka po državah

Razumevanje ravni kakovosti zraka

Dober (0-50)

Air is fresh and healthy. Safe for all outdoor activities.

Zmeren (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Nezdravo (občutljivi) (101-150)

Vulnerable groups (children, elderly) should limit outdoor exertion.

Nezdrav (151-200)

Everyone begins to experience health effects. Stay indoors where possible.

Zelo nezdrav (201-300)

Significant health impact for entire population. Emergency conditions.

Nevarno (301+)

Serious health alert: everyone may experience serious life-threatening effects.

Dober (0-12)

Fine particles are at minimal, safe levels. Air is optimal.

Zmeren (12-35)

Acceptable air, but haze may be present in urban areas.

Občutljivi (35-55)

Individuals with heart or lung disease should limit activity.

Nezdrav (55-150)

Particulate levels high enough to cause respiratory irritation.

Zelo nezdrav (150-250)

Heavy haze. High risk to cardiovascular health for the public.

Nevarno (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Dober (0-54)

Low levels of dust and coarse particles. Environment is safe.

Zmeren (55-154)

Coarse particles may trigger coughing in sensitive groups.

Občutljivi (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Nezdrav (255-354)

Widespread respiratory impacts likely for the population.

Zelo nezdrav (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Nevarno (425+)

Extremely high concentrations. Stay inside with filtration.

Dober (0-54)

Surface ozone levels are within a safe, natural range.

Zmeren (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Občutljivi (71-85)

Rising ozone can trigger airway inflammation in active children.

Nezdrav (86-105)

Avoid heavy outdoor work during the hottest part of the day.

Zelo nezdrav (106-200)

Serious lung function reduction likely across the public.

Nevarno (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Dober (0-53)

Nitrogen levels are optimal. Safe for everyone.

Zmeren (54-100)

Typical background levels for high-density urban areas.

Občutljivi (101-360)

Increased risk of respiratory infections for vulnerable groups.

Nezdrav (361-649)

Significant airway inflammation likely near traffic zones.

Zelo nezdrav (650-1249)

Acute respiratory distress potential. High-risk groups stay indoors.

Nevarno (1250+)

Toxic concentrations. Immediate health precautions required.

Dober (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Zmeren (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Občutljivi (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Nezdrav (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Zelo nezdrav (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Nevarno (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Dober (0-35)

Optimal air quality with no sulfur detection.

Zmeren (36-75)

Acceptable air; minor odors possible near industry.

Občutljivi (76-185)

Bronchoconstriction possible for active asthmatics.

Nezdrav (186-304)

Respiratory distress likely for the wider population.

Zelo nezdrav (305-604)

Significant wheezing and shortness of breath likely.

Nevarno (605+)

Extreme respiratory danger. Significant life risk.

Zdravstveni in znanstveni viri

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Pogosta vprašanja

Kaj je indeks kakovosti zraka (AQI)?

Indeks kakovosti zraka (AQI) je standardizirana lestvica, ki pretvarja koncentracije onesnaževal — PM2.5, PM10, ozon (O₃), dušikov dioksid (NO₂), žveplov dioksid (SO₂) in ogljikov monoksid (CO) — v eno samo številko od 0 navzgor. Nižja vrednost pomeni čistejši zrak.Ta stran spremlja žive odčitke za 10 mest v 249 državah.

Kaj je dobra raven AQI?

AQI 0–50 velja za dobro kakovost in pomeni majhno ali ničelno tveganje za zdravje. 51–100 je zmerna, 101–150 nezdrava za občutljive skupine, vrednosti nad 150 pa so nezdrave za vse.

Kaj je PM2.5?

PM2.5 se nanaša na drobne delce v zraku, velike 2,5 mikrometra ali manj. Ker ti delci prodrejo globoko v pljuča in krvni obtok, je PM2.5 običajno glavni vzrok za indeks kakovosti zraka v mestu.