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UK Air Quality Indicators . Janet Dixon Air and Environment Quality Division, Department of Environment, food and Rural Affairs, UK. Air quality monitoring network. UK Air Pollution Index. Used for providing a public summary of current and forecast air pollution - PowerPoint PPT Presentation

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  • UK Air Quality Indicators

    Janet DixonAir and Environment Quality Division, Department of Environment, food and Rural Affairs, UK

  • Air quality monitoring network

  • UK Air Pollution IndexUsed for providing a public summary of current and forecast air pollution1-10 scale in 4 bands for 5 pollutants - ozone, PM10, SO2, NO2, COProduced for all 16 UK zones and largest 16 of the 28 UK agglomerationsLevels reported = highest for any single pollutantHas health advice associated with each bandMainly driven by PM10 and O3Further information: www.airquality.co.uk/archive/standards.php#band

  • UK Air Pollution Index

  • UK Air Quality Headline IndicatorUK Sustainable Development Strategy One of 15 headline indicatorsDeveloped in 1998, reviewed in 2002Captures acute air quality issuesCounts number of days of moderate or higher (from AP Index) pollution for 5 acute pollutants ozone, PM10, SO2, NO2, CODoes not correspond directly to UK Air Quality Strategy objectives

  • Headline indicatorMaximum number of sites used is fixed Pre-1998 up to 34 urban and 14 rural/remote1998 34 urban and 14 rural/remote2002 49 urban and 16 rural/remoteTo be included sites need minimum range of pollutants and data capture (>75%)Rural at least O3Roadside/kerbside at least PM10Other urban at least O3, PM10 and SO2Fairly robust to changes in networkUrban sites cover 26 of the 28 UK agglomerations

  • Urban sitesRural sitesFinal 2003 indicator

  • Causes of air pollution at urban sitestotal urban

  • particlessulphur dioxideCauses of air pollution at urban sitestotal urban

  • ozoneparticlessulphur dioxideCauses of air pollution at urban sitestotal urban

  • The main episodes driving 2003Exceptionally hot summer high ozoneParticulate episodes in spring, including UK and European elementSaharan dust stormUrbanRuralhigh secondary particulates (SO2 & NO2 gas converted to particulate sulphates & nitrates)

  • PM10NO2SO2Indicator picks up peaks what about long-term trends?but.

    Chart1

    35.166666666741294020

    32.461538461545264020

    31.357142857137264020

    31.833333333339254020

    29.833333333337244020

    26.128205128235204020

    24.4534194020

    23.097560975633174020

    23.450980392239154020

    22.872340425532174020

    25.666666666740154020

    Average

    Range

    Min

    40 ug/m3 objective

    20 ug/m3 prov. objective

    Year

    Concentrations (mg/m3)

    PM10 Annual mean

    PM10 Annual mean - Kerbside/Roadside (gravimetric equivalent)

    PM10 Annual mean - Urban Back/centre/suburban (gravimetric equivalent)

    PM10 Annual mean - Rural/remote (gravimetric equivalent)

    PM10 Annual mean

    1993199319934020

    1994199419944020

    1995199519954020

    1996199619964020

    36.542314020

    33.142857142942274020

    31.714285714346264020

    30.857142857148254020

    31.428571428644264020

    29.222222222245214020

    34.111111111149284020

    Average

    Range

    Min

    40 ug/m3 objective

    20 ugm-3 prov. objective

    Year

    Concentrations (mg/m3)

    NO2 Annual mean

    1993199319934020

    1994199419944020

    1995199519954020

    3131314020

    19.333333333326134020

    1822134020

    17.421124020

    17.2522124020

    16.7521134020

    17.2523144020

    20.526154020

    Average

    Range

    Min

    40 ug/m3 objective

    20 ug/m3 prov. objective

    Year

    Concentrations (mg/m3)

    NOx Annual mean

    35.166666666741294020

    32.461538461545264020

    31.357142857137264020

    31.833333333339254020

    29.833333333337244020

    26.128205128235204020

    24.4534194020

    23.097560975633174020

    23.450980392239154020

    22.872340425532174020

    25.666666666740154020

    Average

    Range

    Min

    40 ug/m3 objective

    20 ug/m3 prov. objective

    Year

    Concentrations (mg/m3)

    SO2 Annual mean

    NO2 Annual mean - Kerbside/Roadside

    NO2 Annual mean - Urban Back/centre/suburban + industrial

    NO2 Annual mean - Rural/remote

    SO2 Annual mean

    18.419.417.440

    16.916.916.940

    14.214.214.240

    2126.21640

    17.725.113.540

    14.516666666723.26.140

    15.966666666722.711.140

    1420.911.340

    15.48221240

    12.966666666721.16.940

    14.828571428621.28.440

    Average

    Range

    Min

    40 ug/m3 objective

    Year

    Concentrations (mg/m3)

    O3 Annual mean

    19931993199340

    19941994199440

    19951995199540

    19961996199640

    59.8571428571724540

    59.1333333333923340

    61.9411764706933340

    57.3157894737932940

    54.4285714286843140

    50.1363636364812240

    55.27272727271072240

    Average

    Range

    Min

    40 ug/m3 objective

    Year

    Concentrations (mg/m3)

    49.8666666667653040

    48.25653240

    47.8683940

    45.9259259259693240

    43.835712440

    39.0942307692651340

    38.4698113208671540

    34.6981481481591540

    34.6274193548551640

    32.0206349206521540

    34.1328125611540

    Average

    Range

    Min

    40 ug/m3 objective

    Year

    Concentrations (mg/m3)

    NOx Annual mean - Kerbside/Roadside

    NOx Annual mean - Urban Back/centre/suburban + industrial

    NOx Annual mean - Rural/remote

    199319931993

    199419941994

    199519951995

    199619961996

    237338147

    221.562537473

    210.176470588239166

    183.526315789541558

    167.238095238133565

    141.045454545530049

    145.0459251607318.2548.3636363636

    Average

    Range

    Min

    Year

    Concentrations (mg/m3)

    119.933333333316169

    110.215568

    105.614474

    97.925925925915452

    101.7220947

    81.101923076918130

    74.643396226414023

    67.820370370414122

    70.540322580613526

    59.009523809511324

    61.7272858045122.222222222222.8181818182

    Average

    Range

    Min

    Year

    Concentrations (mg/m3)

    19931993199330

    19941994199430

    19951995199530

    28.566666666736.419.630

    23.436.615.930

    19.0531.39.530

    20.730.412.530

    17.9829.112.930

    20.883114.130

    16.383333333327.39.130

    18.149667508429.14545454559.877777777830

    Average

    Range

    Min

    30 ug/m3 vegetation objective

    Year

    Concentrations (mg/m3)

    SO2 Annual mean - Kerbside/Roadside

    SO2 Annual mean - Urban Back/centre/suburban + industrial

    SO2 Annual mean - Rural/remote

    19931993199320

    19941994199420

    19951995199520

    19961996199620

    28441220

    17.240520

    11.285714285727420

    9.571428571424320

    8.62522320

    7.285714285718320

    8.12522320

    Average

    Range

    Min

    20 ug/m3 vegetation protection

    Year

    Concentrations (mg/m3)

    8.318.5120

    9.4513.75.220

    6.233333333311.80.720

    7.7412.90.920

    6.97510.43.120

    5.18333333338.53.620

    4.288.12.620

    4.33333333337.82.420

    4.348.32.420

    3.566.21.820

    5.816666666712.83.120

    Average

    Range

    Min

    20 ug/m3 vegetation protection

    Year

    Concentrations (mg/m3)

    30.61538461547015201993

    22.76470588245210201994

    21.77777777785210201995

    19.1255310201996

    15.1514285714457201997

    11.9326086957335201998

    9.4872340426283201999

    9.4744680851234202000

    9.3186440678242202001

    7.1701754386162202002

    8.1183202003

    Average

    Range

    Min

    20 ug/m3 vegetation protection

    Year

    Concentrations (mg/m3)

    O3 Annual mean - Kerbside/Roadside

    O3 Annual mean - Urban Back/centre/suburban + industrial

    O3 Annual mean - Rural/remote

    199319931993

    199419941994

    199519951995

    199619961996

    199719971997

    141612

    15.51813

    161913

    223414

    22.66666666673415

    253916

    Average

    Range

    Min

    Year

    Concentrations (mg/m3)

    54.76923076926848

    57.16666666676551

    57.30769230776749

    536745

    52.42857142866443

    55.87142

    58.47446

    53.57142857146643

    53.69230769236444

    53.83333333336942

    59.44117647067447

    Average

    Range

    Min

    Year

    Concentrations (mg/m3)

    27.90909090913318

    32.86666666674121

    34.84321

    324219

    30.94871794874619

    34.84313725495220

    39.03921568635421

    37.15421

    36.67307692315023

    38.15094339625823

    43.85964912286030

    Average

    Range

    Min

    Year

    Concentrations (mg/m3)

    Chart2

    49.8666666667653040

    48.25653240

    47.8683940

    45.9259259259693240

    43.835712440

    39.0942307692651340

    38.4698113208671540

    34.6981481481591540

    34.6274193548551640

    32.0206349206521540

    34.1328125611540

    Average

    Range

    Min

    40 ug/m3 objective

    Year

    Concentrations (mg/m3)

    PM10 Annual mean

    PM10 Annual mean - Kerbside/Roadside (gravimetric equivalent)

    PM10 Annual mean - Urban Back/centre/suburban (gravimetric equivalent)

    PM10 Annual mean - Rural/remote (gravimetric equivalent)

    PM10 Annual mean

    1993199319934020

    1994199419944020

    1995199519954020

    1996199619964020

    36.542314020

    33.142857142942274020

    31.714285714346264020

    30.857142857148254020

    31.428571428644264020

    29.222222222245214020

    34.111111111149284020

    Average

    Range

    Min

    40 ug/m3 objective

    20 ugm-3 prov. objective

    Year

    Concentrations (mg/m3)

    NO2 Annual mean

    1993199319934020

    1994199419944020

    1995199519954020

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