Environmental hazards and contaminants which are invisible to the eye can be recorded by a new ‘hyperspectral' camera.

Researchers at Tel Aviv University presented their camera that can see a spectrum of colors and can analyze 300 times more data that the human brain.

The sensor, which has an extensive range and can read information from as close as 0.4 inches and as far as 500 miles, can provide immediate and accurate monitoring of areas often affected by contamination like forests, urban areas, agricultural lands, harbors or marinas, the researchers said.

Aside from its use to monitor pollution, the camera can be used to provide extensive analysis of environmental composition which are needed in other disciplines like medicines, pharmacology and engineering.

Meanwhile, the World Health Organization recently released a report on air quality in the different countries all over the world on which the CNBC.com based its list of the ten most polluted countries. Almost all of the countries in the list are either major oil and gas producers, or emerging economies that are growing rapidly.

According to CNBC, the WHO study looked at air quality in 91 countries, measured by the amount of PM10 particles per cubic meter. PM10 particles are particles of 10 micrometers or less that can cause diseases and infections. According to WHO, PM10 levels above 20 micrograms per cubic meter can cause health risks and top ten most polluted countries have PM10 levels from six times to 14 times that level. These are:

10. Kuwait
Pollution level: 123 ug/m3

9. Nigeria
Pollution level: 124 ug/m3

8. Iran
Pollution level: 124 ug/m3

7. United Arab Emirates
Pollution level: 132 ug/m3

6. Egypt
Pollution level: 138 ug/m3

5. Saudi Arabia
Pollution level: 143 ug/m3

4. Senegal
Pollution level: 145 ug/m3

3. Pakistan
Pollution level: 198 ug/m3

2. Botswana
Pollution level: 216 ug/m3

1. Mongolia
Pollution level: 279 ug/m3

Mongolia, the world's most polluted country, is also home to one of the world's most polluted cities - Ulaanbaatar, the report said.