RESULTS OF WATER MONITORING
Wednesday, December 7, 2016
Friday, December 2, 2016
Noise Monitoring and Assessment Results
[WEEK 4]
2nd December 2016 - 7.30 am
🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙Heading back to UniKL MICET🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙
We had collected the result of our noise monitoring for this week. The results shows the noise level at each second for an hour [60sec x 60min]. So, we had a total of 3600 data. To simplify the data obtained, we had calibrated a line graph to observe the pattern.
The highest level recorded by the equipment is data on 3211 seconds which is at 8:24:24 AM where the level reaches up to 79.4 dB. From our observation, the increase on the level of noise at that particular time is due to a disturbance that occur.
L10
L10 is the noise level exceeded for 10 percent of the time of the measurement period. For week 4, the noise limit of L10 was 66.6 dBA means that over a period of one hour. The noise from morning market activities can only exceed 66.6 dBA for a total of six minutes.
Leq
Leq is the time-averaged level and is equivalent to the average energy over the whole measurement period. Leq, or LAeq as it is know called, has become the preferred international descriptor for environmental sound and will be incorporated into all new Standards. For week 4, the Leq is still 70dB.
L95
L95 is the level exceeded for 95 percent of the time and represents the background level without any morning market noise present. The morning market background noise level in week 4 [59.1] is higher from week 1 also week 3.
Max dB
Max dB is the maximum level measured over a period of one hour, but it is not the same as, or not as high as, an individual peak level. In week 4, the max dB is 88.6 dB.
Difference between L10 and Leq
In week 4, the L10 is around 3 to 4 decibels lower than the Leq.
SEL
Sound Exposure Level (SEL) is numerically equivalent to the total Sound Energy.
SEL = Leq + 10 log10 T
SEL = 70 + 10 log 10 3600
SEL = 105.5 dB
In a conclusion, our first monitoring activity has indeed succeeded and we are looking forward to finish the last week.
[WEEK 4]
2nd December 2016 - 7.30 am
🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙Heading back to UniKL MICET🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙
ENVIRONMENTAL NOISE
(ISO 1996-1 & ISO 1996-2)
MEASUREMENT
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DATE: 2 DECEMBER 2016
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TIME: 7.30 AM
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MEASUREMENT TIME INTERVAL: 1 HOUR
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EQUIPMENT
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SOUND LEVEL METER
MODEL: EXTECH INSTRUMENT
SERIAL NO: 150105006
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WEATHER
CONDITION
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WEATHER EQUIPMENT SERIAL NO: SM 15413297
PRESSURE (Pa): 1018 hPa
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PRECIPITATION: RAINING/DRIZZLE
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CLOUD COVER: CLEAR/SCATTERED
CLOUD/PARTLY CLOUD/MOSTLY CLOUD/OVERCAST
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AVERAGE WIND SPEED: 0 kph
TEMPERATURE: 25˚C
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HUMIDITY (%): 80%
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DESCRIPTION
AND OPERATING CONDITION OF THE SOUND SOURCE
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LOCATION OF SITE: MORNING MARKET
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DESCRIPTION OF SITE: THE MARKET IS LOCATED BESIDES MAIN ROAD AND ALSO
LOCATED OPPOSITES TO SHOP LOTS AND ALSO HOUSING AREA.
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BUILDING GEOMETRY: OPEN AREA
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GROUND COVER & CONDITION: TAR ROAD
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PARAMETERS
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HEIGHT OF MICROPHONE (Hr): 1.07 m
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HEIGHT OF SOURCE (Hs): 1.5 m
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DISTANCE BETWEEN SOURCE AND MICROPHONE (r): 5.64 m
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ROAD
TRAFFIC
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# OF HEAVY VEHICLES (>3500KG)
(Min 30): 30
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# OF LIGHT VEHICLES
(Min 30): 350
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AVERAGE SPEED: 60 km/h
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The highest level recorded by the equipment is data on 3211 seconds which is at 8:24:24 AM where the level reaches up to 79.4 dB. From our observation, the increase on the level of noise at that particular time is due to a disturbance that occur.
L10
L10 is the noise level exceeded for 10 percent of the time of the measurement period. For week 4, the noise limit of L10 was 66.6 dBA means that over a period of one hour. The noise from morning market activities can only exceed 66.6 dBA for a total of six minutes.
Leq
Leq is the time-averaged level and is equivalent to the average energy over the whole measurement period. Leq, or LAeq as it is know called, has become the preferred international descriptor for environmental sound and will be incorporated into all new Standards. For week 4, the Leq is still 70dB.
L95
L95 is the level exceeded for 95 percent of the time and represents the background level without any morning market noise present. The morning market background noise level in week 4 [59.1] is higher from week 1 also week 3.
Max dB
Max dB is the maximum level measured over a period of one hour, but it is not the same as, or not as high as, an individual peak level. In week 4, the max dB is 88.6 dB.
Difference between L10 and Leq
In week 4, the L10 is around 3 to 4 decibels lower than the Leq.
SEL
Sound Exposure Level (SEL) is numerically equivalent to the total Sound Energy.
SEL = Leq + 10 log10 T
SEL = 70 + 10 log 10 3600
SEL = 105.5 dB
In a conclusion, our first monitoring activity has indeed succeeded and we are looking forward to finish the last week.
Wednesday, November 30, 2016
Friday, November 25, 2016
Noise Monitoring and Assessment Results
[WEEK 3]
25th November 2016 - 7.30 am
🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙Heading back to UniKL MICET🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙
We had collected the result of our noise monitoring for this week. The results shows the noise level at each second for an hour [60sec x 60min]. So, we had a total of 3600 data. To simplify the data obtained, we had calibrated a line graph to observe the pattern.
The highest level recorded by the equipment is data on 1356 seconds which is at 8:24:02 AM where the level reaches up to 82.3 dB. From our observation, the increase on the level of noise at that particular time is due to a disturbance that occur.
L10
L10 is the noise level exceeded for 10 percent of the time of the measurement period. For week 3, the noise limit of L10 was 68.6 dBA means that over a period of one hour. The noise from morning market activities can only exceed 68.6 dBA for a total of six minutes.
Leq
Leq is the time-averaged level and is equivalent to the average energy over the whole measurement period. Leq, or LAeq as it is know called, has become the preferred international descriptor for environmental sound and will be incorporated into all new Standards. For week 3, the Leq is still 70dB.
L95
L95 is the level exceeded for 95 percent of the time and represents the background level without any morning market noise present. The morning market background noise level in week 3 [58.9] is slightly higher from week 1.
Max dB
Max dB is the maximum level measured over a period of one hour, but it is not the same as, or not as high as, an individual peak level. In week 3, the max dB is 90.5 dB.
Difference between L10 and Leq
In week 3, the L10 is around 1 to 2 decibels lower than the Leq.
SEL
Sound Exposure Level (SEL) is numerically equivalent to the total Sound Energy.
SEL = Leq + 10 log10 T
SEL = 70 + 10 log 10 3600
SEL = 105.5 dB
In a conclusion, our first monitoring activity has indeed succeeded and we are looking forward to finish the rest 2 weeks.
[WEEK 3]
25th November 2016 - 7.30 am
🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙Heading back to UniKL MICET🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙🚙
ENVIRONMENTAL NOISE
(ISO 1996-1 & ISO 1996-2)
MEASUREMENT
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|||
DATE: 25 NOVEMBER 2016
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TIME: 7.30 AM
|
||
MEASUREMENT TIME INTERVAL: 1 HOUR
|
|||
EQUIPMENT
|
|||
SOUND LEVEL METER
MODEL: EXTECH INSTRUMENT
SERIAL NO: 150105006
|
|||
WEATHER
CONDITION
|
|||
WEATHER EQUIPMENT SERIAL NO: SM 15413297
PRESSURE (Pa): 1014 hPa
|
PRECIPITATION: RAINING/DRIZZLE
|
||
CLOUD COVER: CLEAR/SCATTERED
CLOUD/PARTLY CLOUD/MOSTLY CLOUD/OVERCAST
|
|||
AVERAGE WIND SPEED: 0 kph
TEMPERATURE: 29˚C
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HUMIDITY (%): 76%
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DESCRIPTION
AND OPERATING CONDITION OF THE SOUND SOURCE
|
|||
LOCATION OF SITE: MORNING MARKET
|
|||
DESCRIPTION OF SITE: THE MARKET IS LOCATED BESIDES MAIN ROAD AND ALSO
LOCATED OPPOSITES TO SHOP LOTS AND ALSO HOUSING AREA.
|
|||
BUILDING GEOMETRY: OPEN AREA
|
|||
GROUND COVER & CONDITION: TAR ROAD
|
|||
PARAMETERS
|
|||
HEIGHT OF MICROPHONE (Hr): 0.86 m
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HEIGHT OF SOURCE (Hs): 1.5 m
|
||
DISTANCE BETWEEN SOURCE AND MICROPHONE (r): 5.37 m
|
|||
ROAD
TRAFFIC
|
|||
# OF HEAVY VEHICLES (>3500KG)
(Min 30): 30
|
# OF LIGHT VEHICLES
(Min 30): 350
|
AVERAGE SPEED: 60 km/h
|
|
The highest level recorded by the equipment is data on 1356 seconds which is at 8:24:02 AM where the level reaches up to 82.3 dB. From our observation, the increase on the level of noise at that particular time is due to a disturbance that occur.
L10
L10 is the noise level exceeded for 10 percent of the time of the measurement period. For week 3, the noise limit of L10 was 68.6 dBA means that over a period of one hour. The noise from morning market activities can only exceed 68.6 dBA for a total of six minutes.
Leq
Leq is the time-averaged level and is equivalent to the average energy over the whole measurement period. Leq, or LAeq as it is know called, has become the preferred international descriptor for environmental sound and will be incorporated into all new Standards. For week 3, the Leq is still 70dB.
L95
L95 is the level exceeded for 95 percent of the time and represents the background level without any morning market noise present. The morning market background noise level in week 3 [58.9] is slightly higher from week 1.
Max dB
Max dB is the maximum level measured over a period of one hour, but it is not the same as, or not as high as, an individual peak level. In week 3, the max dB is 90.5 dB.
Difference between L10 and Leq
In week 3, the L10 is around 1 to 2 decibels lower than the Leq.
SEL
Sound Exposure Level (SEL) is numerically equivalent to the total Sound Energy.
SEL = Leq + 10 log10 T
SEL = 70 + 10 log 10 3600
SEL = 105.5 dB
In a conclusion, our first monitoring activity has indeed succeeded and we are looking forward to finish the rest 2 weeks.
Wednesday, November 23, 2016
Wednesday, November 16, 2016
Saturday, November 12, 2016
WATER MONITORING
Water monitoring on the colour, total suspended solids (TSS), total kjedall nitrogen(TKN), total dissolved solids (TDS), conductivity, turbidity, biochemical oxygen demand(BOD) and pH of the sample.
pH
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically. pH is reported in "logarithmic units". Each number represents a 10-fold change in the acidity/basicness of the water. Water with a pH of five is ten times more acidic than water having a pH of six.
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically. pH is reported in "logarithmic units". Each number represents a 10-fold change in the acidity/basicness of the water. Water with a pH of five is ten times more acidic than water having a pH of six.
COLOUR
The colour of water attributed to the presence of organic or inorganic materials, different materials absorb different light frequencies. Colour is expressed as Pt-Co unit. Water colour can naturally range from 0-300 PtCo. Colour is regarded as a pollution problem in term aesthetics but is not generally considered a detriment to aquatic life.
The colour of water attributed to the presence of organic or inorganic materials, different materials absorb different light frequencies. Colour is expressed as Pt-Co unit. Water colour can naturally range from 0-300 PtCo. Colour is regarded as a pollution problem in term aesthetics but is not generally considered a detriment to aquatic life.
TOTAL SUSPENDED SOLID (TSS)
Total Suspended Solids (TSS) are solids in water that can be trapped by a filter. TSS can include a wide variety of material, such as silt, decaying plant and animal matter, industrial wastes, and sewage. High concentrations of suspended solids can cause many problems for stream health and aquatic life.
Total Suspended Solids (TSS) are solids in water that can be trapped by a filter. TSS can include a wide variety of material, such as silt, decaying plant and animal matter, industrial wastes, and sewage. High concentrations of suspended solids can cause many problems for stream health and aquatic life.
TOTAL KJELDAHL NITROGEN (TKN)
Total Kjeldahl nitrogen or TKN is the sum of nitrogen in bound in organic substances, nitrogen in ammonia (NH3-N) and in ammonium (NH4+-N) in the chemical analysis of soil, water, or waste water (e.g. sewage treatment plant effluent).
Total Kjeldahl nitrogen or TKN is the sum of nitrogen in bound in organic substances, nitrogen in ammonia (NH3-N) and in ammonium (NH4+-N) in the chemical analysis of soil, water, or waste water (e.g. sewage treatment plant effluent).
TOTAL DISSOLVED SOLIDS (TDS)
Total Dissolved Solids (TDS) are solids in water that can pass through a filter (usually with a pore size of 0.45 micrometers). TDS is a measure of the amount of material dissolved in water. This material can include carbonate, bicarbonate, chloride, sulfate, phosphate, nitrate, calcium, magnesium, sodium, organic ions, and other ions. A certain level of these ions in water is necessary for aquatic life. Changes in TDS concentrations can be harmful because the density of the water determines the flow of water into and out of an organism's cells (Mitchell and Stapp, 1992). However, if TDS concentrations are too high or too low, the growth of many aquatic life can be limited, and death may occur.
Total Dissolved Solids (TDS) are solids in water that can pass through a filter (usually with a pore size of 0.45 micrometers). TDS is a measure of the amount of material dissolved in water. This material can include carbonate, bicarbonate, chloride, sulfate, phosphate, nitrate, calcium, magnesium, sodium, organic ions, and other ions. A certain level of these ions in water is necessary for aquatic life. Changes in TDS concentrations can be harmful because the density of the water determines the flow of water into and out of an organism's cells (Mitchell and Stapp, 1992). However, if TDS concentrations are too high or too low, the growth of many aquatic life can be limited, and death may occur.
CONDUCTIVITY
Conductivity is a measure of water’s capability to pass electrical flow. This ability is directly related to the concentration of ions in the water. These conductive ions come from dissolved salts and inorganic materials such as alkalis, chlorides, sulfides and carbonate compounds. Compounds that dissolve into ions are also known as electrolytes. The more ions that are present, the higher the conductivity of water. Likewise, the fewer ions that are in the water, the less conductive it is.
TURBIDITY
Turbidity is a measure of the degree to which the water loses its transparency due to the presence of suspended particulates. The more total suspended solids in the water, the murkier it seems and the higher the turbidity. Turbidity is considered as a good measure of the quality of water.
BIOCHEMICAL OXYGEN DEMAND (BOD)
Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e., demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water.
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