Particle pollution from fine particulates (PM2.5) is a concern when levels in air are unhealthy. Breathing in unhealthy levels of PM2.5 can increase the risk of health problems like heart disease, asthma, and low birth weight. Unhealthy levels can also reduce visibility and cause the air to appear hazy.

Range Status (ug/m3) :

• Good : 0.0 to 12
• Moderate : 12.1 to 35.4
• Unhealthy : 35.5 to 250.4
• Hazardous : 250.5 to 550.4

How the formula is calculated :

• Current Value : 29
• Formulated Value : 29
  Note: Averaged data from the previous hour

PM10 (particles with a diameter of 10 micrometres or less): these particles are small enough to pass through the throat and nose and enter the lungs. Once inhaled, these particles can affect the heart and lungs and cause serious health effects.

Range Status (ug/m3) :

• Good : 0.0 to 54
• Moderate : 55 to 154
• Unhealthy : 155 to 424
• Hazardous : 425 to 604

How the formula is calculated :

• Current Value : 38
• Formulated Value : 38
  Note : Averaged data from the previous hour

CO is a colorless, odorless gas formed by the incomplete reaction of air with fuel. CO pollution occurs primarily from emissions produced by fossil fuel�powered engines, including motor vehicles and non-road engines and vehicles (such as construction equipment and boats).

Range Status (ppm/part per million) :

• Good : 0.0 to 4.4
• Moderate : 4.5 to 9.4
• Unhealthy : 9.5 to 30.4
• Hazardous : 30.5 to 50.4

How the formula is calculated :

• Current Value : 0.42 ppm
• Formulated Value : 0.42 ppm
  Note : Averaged data from the previous 8 hours

These gases, especially SO2, are emitted by the burning of fossil fuels or other materials that contain sulfur. Sulfur dioxide can damage trees and plants, inhibit plant growth, and damage sensitive ecosystems and waterways. It also can contribute to respiratory illness and aggravate existing heart and lung conditions.

Range Status (ppb/part per billion) :

• Good : 0.0 to 35
• Moderate : 36 to 75
• Unhealthy : 76 to 64
• Hazardous : 65 to 1004

How the formula is calculated :

• Current Value : 0.0050 ppb
• Formulated Value : 0.0050 ppb
  ** Averaged data from the previous hour

Nitrogen dioxide, or NO2, is a gaseous air pollutant composed of nitrogen and oxygen and is one of a group of related gases called nitrogen oxides, or NOx. Nitrogen dioxide forms when fossil fuels such as coal, oil, methane gas (natural gas) or diesel are burned at high temperatures.

Range Status (ppm/part per million) :

• Good : 0 to 53
• Moderate : 36 to 75
• Unhealthy : 76 to 64
• Hazardous : 65 to 1004

How the formula is calculated :

• Current Value : 0.058 ppm
• Formulated Value : 0.058 ppm
  Note : Averaged data from the previous hour

Ozone high in the Earth's atmosphere protects us from the sun's harmful radiation. But at ground level, ozone is an air pollutant that harms people and plants. Ground-level ozone forms when nitrogen oxides and volatile organic compounds react with each other in sunlight and hot temperatures.

Range Status (ppm/part per million) :

• Good : 0 to 12
• Moderate : 12.1 to 53.4
• Unhealthy : 35.5 to 250.4
• Hazardous :250.5 to 500.4

How the formula is calculated :

• Current Value : 0.033 ppm
• Formulated Value : 0.033 ppm
  Note : Averaged data from the previous hour

Thermal pollution is any deviation from the natural temperature in a habitat and can range from elevated temperatures associated with industrial cooling activities to discharges of cold water into streams below large impoundments.

Range Status (Celsius) :

• Good : < 35
• Coution : 35 to 37
• Heat Wave : 38 to 40
• Emergency : > 40

How the formula is calculated :

• Current Value : 33.74 Celsius
• Formulated Value : 33.74 Celsius
  Note : Averaged data from 12:00PM to 3:00PM for 3 days

Humidity has an impact on the formation and dispersion of air pollutants. Humid air traps pollutants close to the ground, preventing them from dispersing into the atmosphere. This increases the concentrations of pollutants in the air, especially in urban areas.

Range Status (%) :

• Good : < 40
• Coution : 41 to 60
• Heat Wave : 61 to 70
• Emergency : > 71

How the formula is calculated :

• Current Value : 66.15 %

Atmospheric Pressure: Low pressure systems bring wet and windy weather; high pressure comes with stagnant air and the concentration of pollutants over an area.

Range Status (kPa/kilopascal) :

• In Range : 100.5 to 101.5 kPa
• Not In Range : < 100.5 and > 101.5 kPa

Source : metelogix.com - Melaka Pressure Range

• Current Value : 100.73 kPa

Higher wind speeds generally translate to a greater dispersion of air pollutants, resulting in lower air pollution concentrations in areas with stronger winds.

Range Status (m/s /meters per second) :

• Normal : 0 to 3.13
• Moderate : 3.14 to 5.36
• Strong :5.37 to 13.87

How the formula is calculated :

• Current Value : 1.03 m/s
• Formulated Value : 1.03 m/s
  ** Averaged data from 12:00PM to 3:00PM for 3 days

Wind carries air contaminants away from their source, causing them to disperse. In general, the higher the wind speed, the more contaminants are dispersed and the lower their concentration. However, high wind can also generate dust.

Range Status (Degree/Origin North) :

• Current Value : 38 Degree

Hence, as the growth rate of raindrops increases i.e. as the rain intensity increases, the concentrations of pollutants (gaseous as well as particulate matters) decrease.

Range Status (mm/per minute) :

• No Rain : 0 to 10
• Light : 11 to 20
• Heavy : 31 to 60
• Very Heavy : > 61

How the formula is calculated :

• Current Value : 0.0 mm

Light pollution can come in several forms: light trespass is when unwanted light escapes from one property into adjacent properties; over-illumination is using excessive light where it isn't needed; light clutter is the redundant clusters of lighting found in many urban centers; sky glow is the collective light pollution found over big cities.

Range Status (lux) :

• Twilight : 1 to 10.8
• Deep Twilight : 0.1 to 1.08
• Full Moon : 0.01 to 0.108
• Quarter Moon : 0.001 to 0.0108
• Starlight : 0.0001 to 0.0011
• Overcast Night : 0.00001 to 0.0001
• Sunlightt : 10000 to 107527
• Full Daylight Moon : 1000 to 10752
• Overcast Day : 100 to 1075
• Very Dark Day : 10 to 107

Global radiation is the total amount of global radiation that hits the earth's surface directly and indirectly. The global radiation at the earth's surface is, among other things, very important for the climate system through its influence on air temperature and evaporation.

Range Status (W/m2) :

• Current Value : 94 W/m2

Noise pollution is considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms. Sound is measured in decibels.

Range Status (dB/decibels ) :

• Normal : 0 to 40
• Moderate : 41 to 69
• Loud : 70 to 119
• Dangerous :120 to 140

How the formula is calculated :

• Current Value : 0.033 dB