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Mosquito Trap

How to build a Mosquito trap.

Materials Needed:

2000ml (2 liter) bottle
50 gram (brown?) sugar
1 gram yeast
Thermometer
Measure cup
Knife
Black paper

1. Cut the top of the bottle as shown

2. Put 200ml hot water in the bottle, stir with 50gram brown sugar. Put the sugar water in cold water to cool it down til 40C (temperature).

They use a bigger container with cold water - put the small cup that they use to make sugar water in that container and that stick is a thermometer because they want the sugar water to cool down to 40C (temperature).

3. After cooling down, put the sugar water in the bottle then add the yeast.
No need to mix the yeast with the sugar water. When yeast ferments, it creates carbon dioxide.

4. When you cut the bottle, dont throw the top part away because that'd be needed for step 4 - you see they put the top upside down to fit into the bottle.

Carbon dioxide will be released from where we drink the bottle so make sure to seal the edge.

5. Put black paper around the bottle since mosquitos like dark places and carbon dioxide. This mosquito trap will then start working.
Mosquitos fly around the corner, so the best place to place the trap is at some dark corner.

TIPS: Put the trap in some dark and humid place for 2 weeks, you'll see the effect. You'll have to replace the sugar water + yeast solution every 2 weeks.

 

Mosquito Coils

Burning mosquito coils indoors generates smoke that can control mosquitoes effectively. This practice is currently used in numerous households in Asia, Africa, and South America. However, the smoke may contain pollutants of health concern. We conducted the present study to characterize the emissions from four common brands of mosquito coils from China and two common brands from Malaysia. We used mass balance equations to determine emission rates of fine particles (particulate matter < 2.5 µm in diameter; PM_2.5), polycyclic aromatic hydrocarbons (PAHs), aldehydes, and ketones. Having applied these measured emission rates to predict indoor concentrations under realistic room conditions, we found that pollutant concentrations resulting from burning mosquito coils could substantially exceed health-based air quality standards or guidelines. Under the same combustion conditions, the tested Malaysian mosquito coils generated more measured pollutants than did the tested Chinese mosquito coils. We also identified a large suite of volatile organic compounds, including carcinogens and suspected carcinogens, in the coil smoke. In a set of experiments conducted in a room, we examined the size distribution of particulate matter contained in the coil smoke and found that the particles were ultrafine and fine. The findings from the present study suggest that exposure to the smoke of mosquito coils similar to the tested ones can pose significant acute and chronic health risks. For example, burning one mosquito coil would release the same amount of PM_2.5 mass as burning 75-137 cigarettes. The emission of formaldehyde from burning one coil can be as high as that released from burning 51 cigarettes.