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PRESS WEATHER NO. 010 - 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 30.6 C
MINIMUM AIR TEMPERATURE 24.7 C
GRASS MINIMUM TEMPERATURE 24.4 C
RELATIVE HUMIDITY 79 - 95 PERCENT
RAINFALL 16.8 MM
TOTAL RAINFALL SINCE 1ST JANUARY 1033.7 MM
AGAINST AN AVERAGE OF 1004.9 MM
 
OTHER STATIONS MIN MAX
KING'S PARK 24.4 C 30.3 C
WONG CHUK HANG 24.1 C 30.5 C
TA KWU LING 23.6 C 31.7 C
LAU FAU SHAN 23.6 C 30.7 C
TAI PO 24.2 C 31.0 C
SHA TIN 24.7 C 31.2 C
TUEN MUN 24.1 C 31.2 C
TSEUNG KWAN O 24.2 C 30.8 C
SAI KUNG 25.6 C 32.7 C
CHEUNG CHAU 23.8 C 31.1 C
CHEK LAP KOK 24.7 C 32.6 C
TSING YI 24.4 C 30.5 C
SHEK KONG 24.3 C 32.6 C
TSUEN WAN HO KOON 23.3 C 28.8 C
TSUEN WAN SHING MUN VALLEY 24.0 C 30.6 C
HONG KONG PARK 23.8 C 30.5 C
SHAU KEI WAN 23.9 C 30.7 C
KOWLOON CITY 24.1 C 30.3 C
HAPPY VALLEY 24.3 C 30.8 C
WONG TAI SIN 24.4 C 30.8 C
STANLEY 23.6 C 30.6 C
KWUN TONG 24.3 C 30.3 C
SHAM SHUI PO 24.4 C 30.7 C
KAI TAK RUNWAY PARK 24.3 C 30.5 C
YUEN LONG PARK 24.1 C 32.6 C
TAI MEI TUK 23.7 C 31.2 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 (24 JUN 2019) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.09 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 0.09
TAP MUN 0.09
KAT O 0.11
YUEN NG FAN 0.12
TAI MEI TUK 0.11
SHA TAU KOK 0.10
KWUN TONG 0.13
SAI WAN HO 0.09
KING'S PARK 0.14
TSIM BEI TSUI 0.13
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 00:24 HKT ON 25.06.2019

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