HKO READINGS & RADIATION LEVEL

YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE                       28.4 C
MINIMUM AIR TEMPERATURE                       20.6 C
GRASS MINIMUM TEMPERATURE                     18.8 C
RELATIVE HUMIDITY                          57 - 87 PERCENT
RAINFALL                                         0 MM
TOTAL RAINFALL SINCE 1ST JANUARY            2382.7 MM
AGAINST AN AVERAGE OF                       2359.8 MM
 
OTHER STATIONS                MIN                  MAX
KING'S PARK                  19.6 C               28.9 C
WONG CHUK HANG               18.7 C               27.9 C
TA KWU LING                  16.1 C               29.8 C
LAU FAU SHAN                 18.1 C               28.4 C
TAI PO                       18.8 C               28.7 C
SHA TIN                      18.4 C               29.3 C
TUEN MUN                     NO DATA             NO DATA
TSEUNG KWAN O                18.6 C               30.4 C
SAI KUNG                     19.0 C               27.9 C
CHEUNG CHAU                  19.1 C               30.7 C
CHEK LAP KOK                 20.1 C               28.7 C
TSING YI                     19.7 C               29.5 C
SHEK KONG                    17.8 C               29.7 C
TSUEN WAN HO KOON            17.9 C               27.3 C
TSUEN WAN SHING MUN VALLEY   18.3 C               29.6 C
HONG KONG PARK               20.2 C               30.1 C
SHAU KEI WAN                 19.8 C               29.1 C
KOWLOON CITY                 19.1 C               29.9 C
HAPPY VALLEY                 18.8 C               29.9 C
WONG TAI SIN                 19.7 C               30.7 C
STANLEY                      19.8 C               28.5 C
KWUN TONG                    19.8 C               28.8 C
SHAM SHUI PO                 19.4 C               30.9 C
KAI TAK RUNWAY PARK          20.5 C               30.1 C
YUEN LONG PARK               18.4 C               29.9 C
TAI MEI TUK                  18.1 C               30.0 C
 
DURATION OF SUNSHINE (KING'S PARK):              9.9 H
 
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS 2,
THE UV INTENSITY WAS LOW.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 5.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND):     NO DATA
 
YESTERDAY'S (18 NOV 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                         0.12
SHA TAU KOK                         0.10
KWUN TONG                           0.13
SAI WAN HO                          0.10
KING'S PARK                         0.15
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 00:15 HKT ON 19.11.2019