## 3 Results  
### Results with Monthly Values  
The mean values, standard deviation (SD), and coefficient of variation (CV) for the data of the six pollen types under study obtained at the Madrid Ayuntamiento and Madrid Facultad de Farmacia stations can be seen in Table 1 (Appendix A). A similarity can be observed in the results of _Olea_ at both stations, interestingly during its pollination period (April to June), both in terms of mean values and in the dispersion measures themselves. The rest of the pollen types show appreciably different values in both stations, except in the isolated cases highlighted in Table 1.  
_Platanus_ is the pollen type with the highest presence in the atmosphere at the two stations in Madrid, (in March and April, when its values literally skyrocket). It is followed by Cupressaceae pollen (with very high values in January, February and March), _Pinus_ (in April, May and June), _Populus_ in March (with particularly high concentration at the Madrid Facultad de Farmacia station), _Ulmus_ in February and _Olea_ in May and June as can be seen in Table 1. In all cases, their values are confirmed within the pollination periods discussed in Section 2.2. There is a substantial variation in the values of pollen concentrations around the average values (significantly different from 0, i.e., greater than or equal to 1), with CVs ranging from 27.145% (in the case of _Platanus_ in the Madrid Ayuntamiento station) to 162.424% for _Olea_ in the same station (as can be seen in Table 1), as a consequence of the existence of annual maximum values of pollen concentration that occur during a time somewhat longer than the pollination (from 1 month in the case of _Platanus_ to about five months in the case of Cupressaceae and _Pinus_). These values decrease during the rest of the year to almost zero. The mean values and dispersion measures of the meteorological variables can be seen in Table 2 (Appendix A). Judging by the CV values, which are, in general, much lower than those recorded for the pollen types, it can be stated that the meteorological parameters show a more excellent stability within the study period. The exception lies mainly in the precipitation variable, with very scattered values (CV for Pmax, in August, of 196.098%), which reflects the type of Mediterranean climate typical of Madrid, with large interannual fluctuations, which leads to variations in pollen concentrations in the atmosphere. The Spearman rank correlation coefficient analysis (\(p\)) results can be seen in Table 3 (Appendix B). The \(p\) values are higher (close to \"1\" or \"\(-\)1\") in the case of _Olea_ with RG and with RUV, with respective values of 0.8132 and 0.8063, and, in both cases, with a \(p\)-valueof \"0\". This can be seen in the graph in Figure 2, and how the meteorological variable PMax does not present results of \(\rho>0.3\) and \(p\)-value \(<0.05\), as can be seen too in Table A3 (Appendix B). Given the results detailed in Figure 2 and Table A3 (Appendix B), the following can be seen:  
* The proportion of correlations significantly different from \"0\" concerning the total is 64.44%. In general, there are more significant correlations of the meteorological variables with the Cupressaceae, _Olea, Pinus_, and _Platanus_ pollen types (76.67%) than with the _Populus_ and _Ulmus_ types (40.00%). Moreover, with the three subtypes of the variable relative humidity, there are none with _Populus_ and _Ulmus_. Moreover, in the case of radiation, only one case of \(\rho>0.3\) (0.5371) and \(p\)-value \(<0.05\) (0.000) occurs in the case of _Populus_ with RD. * A total of 63.64% of the significant correlations of meteorological variables with Cupressaceae pollen are negative. Meanwhile, with _Olea, Pinus_, and _Platanus_ pollen, it is 28.57%. Interestingly, in all cases with significant negative correlations of meteorological parameters with Cupressaceae, positive correlations occur with _Olea, Pinus_, and _Platanus_ types, and vice versa.