Air Quality Index (AQI) in Heard Island and McDonald Islands ๐Ÿ‡ญ๐Ÿ‡ฒ

Air Quality Index

AQI INDEX
--
US EPA Standard

PM 2.5 Level
--
ยตg/mยณ

US EPA Index
--
Updating

Live Air Quality Index (AQI) and PM2.5 Levels in Heard Island and McDonald Islands

Real-time air quality data and environmental pollution metrics are currently updating for this region.

Heard Island and McDonald Islands Air Quality: Major Cities Index

* Air Quality Index (AQI) data for Heard Island and McDonald Islands is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.

Understanding Air Quality Levels

Good (0-50)

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

Moderate (51-100)

Acceptable air quality, though sensitive groups should monitor comfort.

Unhealthy (Sensitive) (101-150)

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

Unhealthy (151-200)

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

Very Unhealthy (201-300)

Significant health impact for entire population. Emergency conditions.

Hazardous (301+)

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

Good (0-12)

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

Moderate (12-35)

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

Sensitive (35-55)

Individuals with heart or lung disease should limit activity.

Unhealthy (55-150)

Particulate levels high enough to cause respiratory irritation.

Very Unhealthy (150-250)

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

Hazardous (250+)

Lethal particulate concentrations. Critical neurological and lung risk.

Good (0-54)

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

Moderate (55-154)

Coarse particles may trigger coughing in sensitive groups.

Sensitive (155-254)

Visible dust pollution. Sensitive groups should avoid heavy labor.

Unhealthy (255-354)

Widespread respiratory impacts likely for the population.

Very Unhealthy (355-424)

Dangerous dust and debris levels. Significant warnings issued.

Hazardous (425+)

Extremely high concentrations. Stay inside with filtration.

Good (0-54)

Surface ozone levels are within a safe, natural range.

Moderate (55-70)

Acceptable air, but sensitive individuals may feel chest tightness.

Sensitive (71-85)

Rising ozone can trigger airway inflammation in active children.

Unhealthy (86-105)

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

Very Unhealthy (106-200)

Serious lung function reduction likely across the public.

Hazardous (201+)

Emergency ozone levels. Risk of permanent lung tissue damage.

Good (0-53)

Nitrogen levels are optimal. Safe for everyone.

Moderate (54-100)

Typical background levels for high-density urban areas.

Sensitive (101-360)

Increased risk of respiratory infections for vulnerable groups.

Unhealthy (361-649)

Significant airway inflammation likely near traffic zones.

Very Unhealthy (650-1249)

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

Hazardous (1250+)

Toxic concentrations. Immediate health precautions required.

Good (0-4.4)

Carbon Monoxide levels are clean and non-toxic.

Moderate (4.5-9.4)

Acceptable; may affect those with specific heart conditions.

Sensitive (9.5-12.4)

Reduced oxygen delivery to the heart may occur.

Unhealthy (12.5-15.4)

Headaches and fatigue may occur in urban canyons.

Very Unhealthy (15.5-30.4)

Significant cardiovascular distress. Mental confusion possible.

Hazardous (30.5+)

Lethal potential. Immediate risk of neurological collapse.

Good (0-35)

Optimal air quality with no sulfur detection.

Moderate (36-75)

Acceptable air; minor odors possible near industry.

Sensitive (76-185)

Bronchoconstriction possible for active asthmatics.

Unhealthy (186-304)

Respiratory distress likely for the wider population.

Very Unhealthy (305-604)

Significant wheezing and shortness of breath likely.

Hazardous (605+)

Extreme respiratory danger. Significant life risk.

Air Quality in Heard Island and McDonald Islands โ€” FAQ

Common questions about AQI levels, pollutants, and data sources for Heard Island and McDonald Islands.

What is the current air quality in Heard Island and McDonald Islands?
Live AQI readings for 0 city(ies) across Heard Island and McDonald Islands are listed above on the US EPA 0-500 scale.
Where does Heard Island and McDonald Islands's AQI data come from?
Real-time readings come from ground-based monitoring stations operated by national environmental agencies in Heard Island and McDonald Islands, delivered via WeatherAPI.com and aggregated using the EPA AQI formula.
What is a healthy AQI value in Heard Island and McDonald Islands?
On the EPA scale used worldwide, 0-50 is Good, 51-100 is Moderate, 101-150 is Unhealthy for sensitive groups, 151-200 is Unhealthy, 201-300 is Very Unhealthy, and 301-500 is Hazardous. The WHO 24-hour PM2.5 guideline is 15 ฮผg/mยณ.
Why do AQI readings vary between cities in Heard Island and McDonald Islands?
Air quality is highly local โ€” major pollution sources (traffic, industry, dust, wildfires) cluster around cities, while wind direction and topography move them around. Comparing nearby readings on this page is the best way to see how conditions change across Heard Island and McDonald Islands.

Time now in these cities:

New York ยท London ยท Tokyo ยท Paris ยท Hong Kong ยท Singapore ยท Dubai ยท Los Angeles ยท Shanghai ยท Beijing ยท Sydney ยท Mumbai

Time now in countries:

๐Ÿ‡บ๐Ÿ‡ธ USA | ๐Ÿ‡จ๐Ÿ‡ณ China | ๐Ÿ‡ฎ๐Ÿ‡ณ India | ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom | ๐Ÿ‡ฉ๐Ÿ‡ช Germany | ๐Ÿ‡ฏ๐Ÿ‡ต Japan | ๐Ÿ‡ซ๐Ÿ‡ท France | ๐Ÿ‡จ๐Ÿ‡ฆ Canada | ๐Ÿ‡ฆ๐Ÿ‡บ Australia | ๐Ÿ‡ง๐Ÿ‡ท Brazil |

Time now in time zones:

UTC | GMT | CET | PST | MST | CST | EST | EET | IST | China (CST) | JST | AEST | SAST | MSK | NZST |

Free widgets for webmasters:

Free Analog Clock Widget | Free Digital Clock Widget | Free Text Clock Widget | Free Word Clock Widget