Year,NH4+ (¦Ìmol/L),¦Ä15NNH4+ (¡ë),f values,Aerosol pH (units)
2011,8.28,-3.85,0.6,0.82
2010,8.94,-6.86,0.69,0.74
2009,10.5,-4.9,0.63,1.02
2008,7.44,8.37,0.25,1.74
2007,14.56,2.86,0.4,1.49
2006,16.72,-1.15,0.52,1.4
2005,11.44,NA,NA,NA
2004,8.28,0.24,0.48,1.34
2003,12.33,1.58,0.44,1.58
2002,11,-7.35,0.7,0.96
2001,6.89,2.09,0.43,1.44
2000,9.17,3.91,0.38,1.46
1999,10,8.37,0.24,1.81
1998,12.72,6.13,0.31,1.78
1997,7.44,NA,NA,NA
1996,4.33,6.08,0.31,1.57
1995,10.33,5.43,0.33,1.56
1994,17.72,4.59,0.36,1.66
1993,16.72,5.05,0.34,1.79
1992,10,5.1,0.34,1.7
1991,9.83,0.2,0.48,1.32
1990,12.5,0.93,0.46,1.53
1989,19,-2.55,0.56,1.41
1988,14.89,1.42,0.45,1.62
1987,12.44,3.2,0.4,1.73
1986,10.72,2.02,0.44,1.66
1985,18.06,-3.57,0.6,1.5
1984,5.11,8.53,0.25,1.65
1983,6.06,-2.98,0.59,1.04
1982,5.33,-6.42,0.69,0.96
1981,6,-0.84,0.53,1.21
1980,10.83,-0.22,0.52,1.43
1979,6.33,-2.65,0.59,1.21
1978,6.56,NA,NA,NA
1977,8.5,0.88,0.49,1.53
1976,12.33,-0.11,0.52,1.48
1975,13.5,-0.45,0.54,1.54
1974,8.11,-0.78,0.55,1.29
1973,10.39,2.59,0.45,1.35
1972,9.67,-4.04,0.65,1.2
1971,4.94,9.29,0.26,1.66
1970,8.33,6.71,0.34,1.65
1969,5.39,-0.83,0.56,1.11
1968,9.06,7.59,0.32,1.87
1967,7.28,-2.46,0.61,1.03
1966,3.33,NA,NA,NA
1965,6.28,-3.43,0.64,1.05
1964,8.39,7.44,0.33,1.61
1963,9.5,5.61,0.38,1.49
1962,12,0.56,0.53,1.43
1961,9.94,2.43,0.48,1.52
1960,7.11,9.18,0.29,1.78
1959,8.44,4.74,0.42,1.5
1958,8.56,4.38,0.43,1.49
1957,5.61,3.66,0.45,1.19
1956,4.72,0.52,0.54,1.33
1955,9.61,6.28,0.38,1.52
1954,17.22,0.19,0.55,1.37
1953,18.17,0.6,0.54,1.55
1952,7.11,0.81,0.54,1.15
1951,7.11,10.08,0.27,1.87
1950,6.28,-6.21,0.74,1.06
1949,4.83,0.54,0.56,1.19
1948,2.56,5.03,0.42,1.28
1947,3.67,NA,NA,NA
1946,2.39,NA,NA,NA
1945,2.67,NA,NA,NA
1944,7.39,2.19,0.51,1.33
1943,8.72,2.81,0.49,1.5
1942,7.83,7.29,0.36,1.73
1941,3.61,0.23,0.56,1.06
1940,NA,NA,NA,NA
1939,9.17,3.32,0.47,1.57
1938,7.28,8.4,0.32,1.68
1937,9.83,3.63,0.46,1.59
1936,7.39,5.36,0.41,1.48
1935,2.44,NA,NA,NA
1934,5.33,1.91,0.51,1.44
1933,9.89,3.47,0.47,1.61
1932,9.78,4.8,0.43,1.68
1931,7.78,4.05,0.45,1.46
1930,3.56,5.45,0.41,1.35
1929,8.67,5.9,0.39,1.65
1928,6.17,8.86,0.31,1.68
1927,5.06,-5.33,0.72,1.02
1926,6.17,10.1,0.27,2.02
1925,5.56,5.76,0.4,1.73
1924,3.17,NA,NA,NA
1923,6.67,10.44,0.26,2.02
1922,10.39,7.46,0.35,1.76
1921,9.61,4.15,0.44,1.67
1920,6.22,NA,NA,NA
1919,7.67,7.87,0.33,1.72
1918,10.44,14.45,0.14,2.22
1917,7.22,7.96,0.33,1.67
1916,3.78,9.3,0.29,1.74
1915,4.49,4.74,0.42,1.2
1914,5.9,0.74,0.54,1.17
1913,5.39,9.91,0.27,1.6
1912,6.88,0.8,0.54,1.2
1911,3.79,14.22,0.15,1.84
1910,5.51,10.99,0.24,1.9
1909,4.35,10.9,0.24,1.58
1908,2.81,9.97,0.27,1.46
1907,4.4,NA,NA,NA
1906,4.1,5.67,0.4,1.21
1905,6.04,-2.66,0.64,0.95
1904,2.44,NA,NA,NA
1903,4.11,10.05,0.27,1.81
1902,3.9,3.78,0.45,1.1
1901,6.39,-1.38,0.6,1.08
1900,3.18,6.28,0.38,1.08
1899,3.67,-0.89,0.59,0.8
1898,5.68,14.23,0.15,1.86
1897,4.1,NA,NA,NA
1896,4.12,-12.47,0.92,NA
1895,6.08,11.8,0.22,1.65
1894,5.1,14.72,0.13,1.97
1893,NA,NA,NA,NA
1892,4.92,NA,NA,NA
1891,4.17,11.84,0.22,1.86
1890,5.58,10.6,0.25,1.78
1889,5.39,12.56,0.19,1.79
1888,6.7,NA,NA,NA
1887,7.74,1.79,0.51,1.11
1886,5.08,4.79,0.42,1.32
1885,3.9,13.91,0.16,1.84
1884,4.96,8.17,0.32,1.61
1883,4.71,4.13,0.44,1.52
1882,5.03,7.35,0.35,1.89
1881,5.37,9.84,0.27,1.74
1880,4.56,8.36,0.32,1.4
1879,5.6,12.33,0.2,1.75
1878,5.55,5.65,0.4,1.64
1877,4.04,9.28,0.29,1.5
1876,6.37,5.23,0.41,1.77
1875,6.01,21.04,NA,NA
1874,4.1,6.06,0.38,1.57
1873,3.75,9.65,0.28,1.56
1872,4.74,NA,NA,NA
1871,8.36,11.84,0.22,1.9
1870,NA,NA,NA,NA
1869,7.82,5.53,0.4,1.6
1868,9.1,10.53,0.25,2.16
1867,6.59,-6.12,0.74,1.14
1866,6.38,-7.82,0.79,0.76
1865,9.85,3.49,0.46,1.55
1864,9.41,3.43,0.46,1.47
1863,5.9,13.1,0.18,2.24
1862,2.7,0.23,0.55,0.92
1861,3.61,6.92,0.36,1.55
1860,6.33,12.37,0.2,1.77
1859,7.45,-1.79,0.61,1.19
1858,5.13,6.69,0.37,1.42
1857,4.74,8.12,0.32,1.32
1856,2.87,5.94,0.39,0.89
1855,3.38,-2.27,0.63,0.85
1854,3.09,3.3,0.46,1.16
1853,3.53,-0.6,0.58,0.98
1852,4.89,8.03,0.33,1.54
1851,5.03,5.23,0.41,1.35
1850,7.49,-5.99,0.74,0.97
1849,10.75,10.42,0.26,1.94
1848,5.06,-0.51,0.58,0.84
1847,7.22,12.99,0.18,1.95
1846,4.44,NA,NA,NA
1845,5.19,7.43,0.34,1.46
1844,3.46,1.24,0.52,0.94
1843,2.63,5.61,0.4,1.53
1842,4.4,7.88,0.33,1.68
1841,4.98,-0.18,0.57,1.29
1840,5.43,10.46,0.26,1.83
1839,5.73,11.64,0.22,2.03
1838,7.66,8.84,0.3,1.83
1837,4.28,17.15,0.06,2.57
1836,5.37,7.83,0.33,1.73
1835,4.79,16.26,0.09,2.31
1834,4.36,13.22,0.18,2.03
1833,4.54,10.67,0.25,1.71
1832,4.4,-1.69,0.61,1.25
1831,2.94,-2.88,0.65,1.04
1830,6.57,3.46,0.46,1.59
1829,8.82,7.07,0.36,1.88
1828,NA,NA,NA,NA
1827,NA,NA,NA,NA
1826,3.38,7.49,0.34,1.31
1825,1.94,8.62,0.31,1.27
1824,5.45,10.26,0.26,1.66
1823,8.49,6.72,0.37,1.61
1822,4.18,16.81,0.07,2.4
1821,5.32,13.66,0.16,2.08
1820,5.29,12.87,0.19,2.08
1819,6.11,12.95,0.18,2.22
1818,5.8,10.31,0.26,1.9
1817,2.17,3.57,0.46,1.57
1816,2.87,5.25,0.41,1.58
1815,3.84,2.84,0.48,1.35
1814,2.6,12.74,0.19,2
1813,4.29,10.98,0.24,2.02
1812,10.03,16.58,0.08,2.76
1811,NA,NA,NA,NA
1810,9.75,11.18,0.24,2.19
1809,5.12,12.4,0.2,1.89
1808,3.4,1.92,0.51,1.14
1807,8,11,0.24,2.14
1806,3.77,8.07,0.33,1.71
1805,4.34,-0.6,0.58,1.31
1804,6.76,4.3,0.44,1.41
1803,2.99,1.59,0.51,1.22
1802,4.72,5.83,0.39,1.74
1801,5.63,1.1,0.53,1.31
1800,3.92,10.75,0.25,1.76
1799,3.67,11.42,0.23,1.74
1798,3.61,13.68,0.16,2.11
1797,6.34,15.45,0.11,2.24
1796,4.52,9.58,0.28,1.7