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PRESS WEATHER NO. 006 - HKO READINGS & RADIATION LEVEL
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HKO READINGS & RADIATION LEVEL

YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 23.9 C
MINIMUM AIR TEMPERATURE 20.9 C
GRASS MINIMUM TEMPERATURE 21.4 C
RELATIVE HUMIDITY 78 - 96 PERCENT
RAINFALL 12.6 MM
TOTAL RAINFALL SINCE 1ST JANUARY 2077.3 MM
AGAINST AN AVERAGE OF 2309.7 MM
 
OTHER STATIONS MIN MAX
KING'S PARK 20.3 C 23.6 C
WONG CHUK HANG 20.9 C 24.1 C
TA KWU LING 19.6 C 23.5 C
LAU FAU SHAN 19.2 C 24.7 C
TAI PO 20.0 C 22.9 C
SHA TIN 20.5 C 24.0 C
TUEN MUN 19.7 C 23.1 C
TSEUNG KWAN O 20.2 C 23.6 C
SAI KUNG 20.5 C 24.5 C
CHEUNG CHAU 20.3 C 23.0 C
CHEK LAP KOK 20.3 C 25.3 C
TSING YI 21.0 C 24.2 C
SHEK KONG 19.7 C 23.5 C
TSUEN WAN HO KOON 19.9 C 22.7 C
TSUEN WAN SHING MUN VALLEY 20.4 C 23.6 C
HONG KONG PARK 20.6 C 24.2 C
SHAU KEI WAN 20.1 C 24.1 C
KOWLOON CITY 20.1 C 23.5 C
HAPPY VALLEY 21.0 C 24.4 C
WONG TAI SIN 20.6 C 24.0 C
STANLEY 21.0 C 24.2 C
KWUN TONG 20.4 C 23.7 C
SHAM SHUI PO 20.5 C 23.8 C
KAI TAK RUNWAY PARK 20.9 C 24.5 C
YUEN LONG PARK 19.4 C 23.4 C
TAI MEI TUK 19.9 C 22.8 C
 
DURATION OF SUNSHINE (KING'S PARK): 0.2 H
 
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS 1,
THE UV INTENSITY WAS LOW.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 4.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND): NO DATA
 
YESTERDAY'S (18 OCT 2018) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.10 TO
0.15 MICROSIEVERT PER HOUR. THESE ARE WITHIN THE NORMAL
RANGE OF FLUCTUATION OF THE BACKGROUND RADIATION LEVEL IN
HONG KONG (SEE NOTE). THE AVERAGE DOSE RATES MEASURED AT
THE RADIATION MONITORING STATIONS OVER VARIOUS PARTS OF THE
TERRITORY WERE AS FOLLOWS :
 
STATION YESTERDAY'S AVERAGE
(MICROSIEVERT/HOUR)
PING CHAU 0.10
TAP MUN 0.10
KAT O 0.11
YUEN NG FAN 0.12
TAI MEI TUK 0.13
SHA TAU KOK 0.11
KWUN TONG 0.13
SAI WAN HO 0.10
KING'S PARK 0.15
TSIM BEI TSUI 0.14
CAPE D'AGUILAR 0.13
CHEK LAP KOK 0.15

 
NOTE
1. FROM READINGS TAKEN AT VARIOUS LOCATIONS IN HONG KONG IN THE
PAST, THE HOURLY MEAN AMBIENT GAMMA RADIATION DOSE RATE MAY
VARY BETWEEN 0.06 AND 0.3 MICROSIEVERT PER HOUR.
(1 MICROSIEVERT = 0.000001 SIEVERT = 0.001 MILLISIEVERT)
 
2. TEMPORAL VARIATIONS ARE GENERALLY CAUSED BY CHANGES IN
METEOROLOGICAL CONDITIONS SUCH AS RAINFALL, WIND AND
BAROMETRIC PRESSURE.
 
3. SPATIAL VARIATIONS ARE GENERALLY CAUSED BY DIFFERENCES IN
THE RADIOACTIVE CONTENT OF LOCAL ROCK AND SOIL.
 
4. THE DATA DISPLAYED IS PROVISIONAL. ONLY LIMITED DATA
VALIDATION HAS BEEN CARRIED OUT.


DISPATCHED BY HONG KONG OBSERVATORY AT 00:20 HKT ON 19.10.2018

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