## 5 Results and Discussions
### Analysis of SEVI by Municipal Delegations
\begin{table}
\begin{tabular}{c c c c} \hline \hline  & & \multicolumn{2}{c}{**Very Low**} \\ \cline{2-4}
**Delegations** & **Total AGEB** & **Population** &
\begin{tabular}{c} **Percentage of** \\ **Vulnerable** \\ **Population** \\ \end{tabular} \\ \hline Playas de Tijuana & 0 & 0 & 0.00 \\ \hline San Antonio de los Buenos & 0 & 0 & 0.00 \\ \hline Centro & 0 & 0 & 0.00 \\ \hline Otay-Centenario & 0 & 0 & 0.00 \\ \hline La Presa & 0 & 0 & 0.00 \\ \hline Cerro Colorado & 0 & 0 & 0.00 \\ \hline La Mesa & 0 & 0 & 0.00 \\ \hline Sánchez Taboada & 0 & 0 & 0.00 \\ \hline Presa Este & 2 & 0 & 0.00 \\ \hline Rest of the municipality & 0 & 0 & 0.00 \\ \hline Total Vulnerable & 2 & 0 & 0.00 \\ \hline Percentage with respect to total & & 0.00 \\ \multicolumn{2}{c}{municipal population} \\ \hline \hline \end{tabular}
\end{table} 
Table 8: SEVI results by delegation at the Very Low level. Presa with 154,097 inhabitants, Sanchez Taboada with 152,242 inhabitants, San Antonio de los Buenos with 136,322 inhabitants, Presa Este with 93,862 inhabitants, Playas de Tijuana with 67,019 inhabitants, and Cerro Colorado with 60,402 inhabitants. It is noteworthy that these delegations together comprise a total of 825,145 inhabitants, representing 87.84% of the total population at these levels. However, when considering the total population of all delegations that exhibit these levels of vulnerability, it amounts to 939,283 inhabitants, which represents 48.85% of the total population of Tijuana. The somewhat homogeneous dispersion of the situation at the Middle High and Middle Low levels, which reaches up to 71.00%, in addition to the identification of areas with high socio-environmental vulnerability, indicates that it is necessary to generate special attention in the city and in an integrated manner regarding the management of USW, the sources of atmospheric pollutants, and the neglect in the provision of infrastructure and basic services. After analyzing the results for the delegations that exhibited the most disadvantaged levels of socio-environmental vulnerability in relation to the variables that determine urban marginalization, it is found that, in order of priority, attention should be given to the delegations of Presa Este, Otay-Centenario, Sanchez Taboada, San Antonio de los Buenos, La Presa, Playas de Tijuana, Cerro Colorado, Centro, and La Mesa. The first five delegations are by far the most disadvantaged, as they have double or more than double the population in critical situations compared to the following ones. This indicates that it is necessary for public and private entities responsible for promoting better housing conditions, health services, education, and employment to implement actions or public policies in favor of these areas. From the perspective of waste management schemes, it is necessary to strengthen the capacity of the city's garbage collection service, with particular attention to the recognized high-generation zones such as the delegations of La Presa, Presa Este, San Antonio de los Buenos, and Otay-Centenario. Regarding clandestine dumping sites, vacant lots or abandoned properties have been found to exist and are distributed throughout the urban area. Typically, these areas are prone to the disposal of construction debris, heavy domestic waste, heavy weed clearing, and tires, among other materials. Another issue perceived is related to garbage being washed away by runoff during rain events, which ends up affecting the efficiency of the stormwater infrastructure, obstructing its functioning, and causing floods in many areas of the urban area. In terms of air quality conditions, contributions from emissions generated by industry were considered, with special attention to the manufacturing sector, detecting high concentrations in the delegations of Otay-Centenario, Centro, La Mesa, Presa Este, and Cerro Colorado.